4061:
4786:
4055:
4834:
4774:
3846:
38:
4798:
4822:
4810:
198:
3.6 ks), days (86,400 s), weeks, months, and years (of which there are a number of variations) are commonly used. Weeks, months, and years are significantly variable units whose lengths depend on the choice of calendar and are often not regular even with a calendar, e.g., leap years versus regular years in the
1164:
with the interval described as "a day" on them being most often 86.4 ks exactly by definition but occasionally one second more or less so that every day contains a whole number of seconds while preserving alignment with astronomical time. The hour hand of an analogue clock will typically cycle twice
197:
Metric units of time larger than the second are most commonly seen only in a few scientific contexts such as observational astronomy and materials science, although this depends on the author. For everyday use and most other scientific contexts, the common units of minutes, hours (3,600 s or
3027:
Alpha
Collaboration; Andresen, G. B.; Ashkezari, M. D.; Baquero-Ruiz, M.; Bertsche, W.; Bowe, P. D.; Butler, E.; Cesar, C. L.; Charlton, M.; Deller, A.; Eriksson, S.; Fajans, J.; Friesen, T.; Fujiwara, M. C.; Gill, D. R.; Gutierrez, A.; Hangst, J. S.; Hardy, W. N.; Hayano, R. S.; Hayden, M. E.;
1190:
of suitable capability level will most often display the leap second as 23:59:60 and not 24:00:00 before rolling over to 00:00:00 the next day, as though the last "minute" of the day were crammed with 61 seconds and not 60, and similarly the last "hour" 3601 s instead of
2170:
for the quantum state of a hypothetical box containing an isolated black hole of stellar mass This time assumes a statistical model subject to
Poincaré recurrence. A much simplified way of thinking about this time is that in a model in which history
194:. Those amounts of time together span 60 decimal orders of magnitude. Metric prefixes are defined spanning 10 to 10, 60 decimal orders of magnitude which may be used in conjunction with the metric base unit of second.
2358:
years): The scale of an estimated
Poincaré recurrence time for the quantum state of a hypothetical box containing a black hole with the estimated mass of the entire Universe, observable or not, assuming Linde's
961:
In this table, large intervals of time surpassing one second are catalogued in order of the SI multiples of the second as well as their equivalent in common time units of minutes, hours, days, and Julian years.
3028:
Humphries, A. J.; Hydomako, R.; Jonsell, S.; Kemp, S. L.; Kurchaninov, L.; Madsen, N.; Menary, S.; Nolan, P.; Olchanski, K.; et al. (5 June 2011). "Confinement of antihydrogen for 1,000 seconds".
2356:
2285:
3959:
1581:
in modern-day Mexico. This extinction was one of the largest in Earth's history and marked the demise of most dinosaurs, with the only known exception being the ancestors of today's birds.
1682:
to the point that enough energy will be reaching the Earth to cause the evaporation of the oceans and their loss into space (due to the UV flux from the Sun at the top of the atmosphere
3882:
632:
349:
2164:
1590:, the actually largest known mass extinction in Earth history which wiped out 95% of all extant species and believed to have been caused by the consequences of massive long-term
2219:
4651:
2221:
Qs: The scale of an estimated
Poincaré recurrence time for the quantum state of a hypothetical box containing a black hole with the mass of the observable Universe.
1775:
increases in strength and power in a feedback loop that eventually results in the tearing apart of all matter down to subatomic scale due to the rapidly increasing
2944:"AMD Breaks 8 GHz Overclock with Upcoming FX Processor, Sets World Record. The record has been surpassed with 8794 MHz of overclocking with AMD FX 8350"
3500:
2943:
3875:
3657:
157:
Prefixes are not usually used with a base unit of years. Therefore, it is said "a million years" instead of "a megayear". Clock time and calendar time have
3548:
55:
1822:, which is the most commonly-accepted model in the current scientific community. This is marked by the cooling-off of the last low-mass dwarf star to a
3622:
4644:
4413:
3868:
3572:
3528:
217:(365.25 days of 86,400 seconds), denoted with the symbol a. Its definition is based on the average length of a year according to the
3607:
3441:
1570:
150:. In some cases, the order of magnitude may be implied (usually 1), like a "second" or "year". In other cases, the quantity name implies the
4382:
3612:
4854:
4637:
102:
3523:
3090:
639:: The experimentally-measured travel time of a photon across a hydrogen molecule, "for the average bond length of molecular hydrogen"
3365:
Page, Don N. (15 January 1976). "Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole".
74:
4133:
3667:
3642:
3592:
3493:
1587:
121:
229:
to it; at least up to giga-annum or Ga, equal to 1,000,000,000 a (short scale: one billion years, long scale: one milliard years).
2179:, this is the time scale when it will first be somewhat similar (for a reasonable choice of "similar") to its current state again.
225:
every four years. According to the geological science convention, this is used to form larger units of time by the application of
3703:
3299:
Adams, Fred C.; Laughlin, Gregory (1 April 1997). "A dying universe: the long-term fate and evolution of astrophysical objects".
2751:
Gaumnitz, Thomas; Jain, Arohi; Pertot, Yoann; Huppert, Martin; Jordan, Inga; Ardana-Lamas, Fernando; Wörner, Hans Jakob (2017).
81:
3647:
3602:
3587:
2455:
1110:: The length of one hour (h), the time for the minute hand of a clock to cycle once around the face, approximately 1/24 of one
4206:
3637:
3538:
1340:
59:
2290:
2225:
2167:
4387:
3682:
3627:
3577:
3563:
3553:
2445:
1819:
1768:
88:
4764:
2580:
1981:): The time period equivalent to the value of 13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.0.0.0.0 in the
4864:
3849:
3770:
3687:
3672:
3597:
3568:
3543:
3486:
1755:
All times of this length and beyond are currently theoretical as they surpass the elapsed lifetime of the known universe
1382:
as of Jul 14 02:40:00 UTC 2017. Unix time being the number of seconds since 1970-01-01T00:00:00Z ignoring leap seconds.
4342:
4322:
4268:
4153:
3989:
3662:
3632:
3582:
2947:
2857:
188:
3468:
3414:
Page, Don N. (25 November 1994). "Information Loss in Black Holes and/or
Conscious Beings?". In Fulling, S.A. (ed.).
70:
4009:
3994:
3932:
3617:
3558:
3533:
2475:
1815:
1091:, in electrically neutral state as of 2011; 1.477 ks: The longest period in which a person has not taken a breath.
48:
4163:
3974:
3821:
3812:
2752:
2607:
583:
312:
4423:
4201:
4103:
4019:
4014:
3238:
2465:
2118:
1982:
1632:
1300:
758:
214:
151:
1674:: The estimated remaining habitable lifetime of Earth, according to some models. At this point in time the
3789:
2172:
2128:
1767:
according to some models, but this is not favored by existing data. This is one possible scenario for the
537:
472:
428:
395:
202:. This makes them problematic for use against a linear and regular time scale such as that defined by the
165:
orders of magnitude rather than decimal, e.g., a year is 12 months, and a minute is 60 seconds.
4751:
4576:
2183:
2041:
1662:
1495:
1437:
209:
Because of this, the table below does not include weeks, months, and years. Instead, the table uses the
4785:
2753:"Streaking of 43-attosecond soft-X-ray pulses generated by a passively CEP-stable mid-infrared driver"
1923:): Highest estimate of the time until all stars are ejected from galaxies or consumed by black holes.
95:
4403:
4317:
4143:
4004:
3804:
3708:
3429:
3374:
3318:
3257:
3047:
2896:
2885:"Visualizing electron rearrangement in space and time during the transition from a molecule to atoms"
2764:
2684:
2450:
498:
486:
2969:
1156:, and increasing at the rate of approximately 2 ms/century; to correct for this time standards like
4859:
4613:
4408:
4263:
4128:
4080:
3949:
3106:
2470:
2440:
1731:
774:
180:
1910:): The estimated time until all stars are ejected from their galaxies or consumed by black holes.
4826:
4790:
4588:
4362:
4286:
4216:
3722:
3509:
3447:
3419:
3342:
3308:
3281:
3247:
3063:
3037:
2708:
2674:
2176:
1718:
1628:
1591:
1292:
1284:
1275:
1261:
1206:
1102:
795:
199:
135:
2733:
1241:
2576:
The
American Heritage Dictionary of the English Language: Fourth Edition. 2000. Available at:
4436:
4301:
4118:
3775:
3754:
3749:
3437:
3390:
3334:
3273:
3086:
2924:
2829:
2790:
2700:
2665:
2634:
2360:
1683:
1675:
1631:, a massive evolutionary diversification of life which led to the appearance of most existing
1523:
762:
2808:
Kim, H. Y.; Garg, M.; Mandal, S.; Seiffert, L.; Fennel, T.; Goulielmakis, E. (January 2023).
4802:
4581:
4327:
4306:
4258:
4221:
4034:
3382:
3326:
3265:
3127:
3055:
2914:
2904:
2837:
2821:
2780:
2772:
2692:
2624:
2616:
1811:
1709:
1619:
1578:
1514:
1454:
1096:: The time slot for the typical situation comedy on television with advertisements included
1049:
782:
4312:
4291:
4123:
4095:
2584:
2072:
1840:
1696:
1636:
1538:
1472:
1392:
1388:
287:
218:
173:
3418:. Discourses in Mathematics and its Applications. Texas A&M University. p. 461.
3009:
789:: The time for the fastest overclocked processor as of 2014 to execute one machine cycle.
3433:
3378:
3322:
3261:
3051:
2900:
2768:
2688:
142:
prefix or decimal order-of-magnitude quantity together with a base unit of time, like a
4838:
4778:
4670:
4608:
4367:
4357:
4296:
4253:
4085:
4075:
4044:
3944:
3916:
3652:
2919:
2884:
2842:
2629:
2095:
1827:
1599:
1595:
1491:
1446:
1331:
1249:
1149:
1111:
711:
573:
556:
442:
2660:
1038:(3 min 20 s): The average length of the most popular YouTube videos as of January 2017
4848:
4495:
4446:
4431:
4377:
4148:
3984:
3979:
3895:
3744:
3713:
2809:
2712:
2602:
2501:
1958:
1666:
1607:
1557:
1187:
1170:
1166:
1153:
770:
438:
360:
147:
3451:
3346:
3285:
3067:
359:) is the briefest physically meaningful span of time. It is the unit of time in the
4833:
4814:
4773:
4593:
4480:
4475:
4470:
4457:
4196:
3269:
2988:
2526:
2460:
2368:
2033:
2013:
1990:
1692:
1434:
1426:
1161:
1088:
860:
794:: How much more a second lasts far away from Earth's gravity due to the effects of
749:
560:
364:
1186:
time scale. While this is strictly 24 hours and 1 second in conventional units, a
3860:
2551:
1010:: One minute (min), the time it takes a second hand to cycle around a clock face
884:: The time for a neuron in the human brain to fire one impulse and return to rest
4715:
4710:
4695:
4603:
4598:
4243:
4226:
4158:
4138:
4024:
3906:
3797:
3781:
3718:
3472:
1878:
1874:
1823:
1772:
1418:
1197:
1179:
1136:
870:
832:
679:
507:
299:
267:
169:
162:
143:
37:
2825:
2785:
1712:
by our best estimates. Also the approximate half-life of the uranium isotope U.
1278:; common interval used in legal agreements and contracts as a proxy for a month
846:: The time needed to execute one machine cycle by an Intel 80186 microprocessor
4746:
4741:
4736:
4705:
4700:
4690:
4629:
4618:
4571:
4555:
4441:
4347:
4168:
4029:
3999:
3937:
3829:
3330:
2577:
2122:
2049:
1785:
1679:
1658:
1504:
1409:
1405:
1084:
805:
778:
734:
647:
191:
158:
3394:
3338:
2833:
2603:"Coherent control of collective nuclear quantum states via transient magnons"
1121:
35.73 ks: the rotational period of planet
Jupiter, fastest planet to rotate
819:: The time needed to execute one machine cycle by a 1 GHz microprocessor
4515:
4352:
4236:
4211:
4191:
4108:
4060:
4054:
4039:
3737:
3732:
3386:
2909:
2696:
1645:
1379:
890:
694:
552:
494:
482:
226:
222:
179:
The largest realized amount of time, based on known scientific data, is the
3277:
2928:
2794:
2704:
2638:
2620:
1124:
38.0196 ks: rotational period of Saturn, second shortest rotational period
1661:(Ga), one billion years, the largest fixed time unit used in the standard
17:
4550:
4530:
4372:
4278:
4178:
3969:
3964:
3313:
2776:
2364:
2037:
1776:
1574:
1561:
1533:
1344:
707:
577:
184:
4545:
4535:
4465:
4337:
4248:
4113:
3727:
3424:
1962:
1764:
1649:
1603:
703:
697:; The time it takes light to travel a distance of 0.3 micrometres (μm).
386:
139:
3478:
3059:
1148:(24 h): The length of one day of Earth by standard. More exactly, the
4731:
4540:
4490:
4485:
2045:
1889:
1836:
1700:
925:
564:
528:
463:
419:
3010:"YouTube Statistics and Your Best Video Length for Different Videos"
1993:
to be the absolute value for the length of one cycle of the universe
1699:, or one day (but not including the following night) of the life of
154:, like "century". In most cases, the base unit is seconds or years.
4809:
2734:"12 attoseconds is the world record for shortest controllable time"
2679:
4520:
4332:
4231:
4186:
3252:
3042:
1852:
1797:
1305:
1274:(30 d): The length of April, June, September, and November in the
1048:(11 m 50 s): The time for a human walking at average speed of 1.4
724:
702:: The time needed for electrons to have localized onto individual
546:: Smallest experimentally controlled time delay in a photon field.
280:
Presumed to be the shortest theoretically measurable time interval
210:
2659:
Grundmann, Sven; Trabert, Daniel; et al. (16 October 2020).
4525:
4510:
4500:
3954:
3891:
2480:
1986:
1512:(2.5 Ma): The approximate time since earliest hominids of genus
1253:
852:
693:: The cycle time for ultraviolet light with a wavelength of 300
4633:
3864:
3482:
4505:
1743:
1722:
1686:
the molecules), making it impossible for any life to continue.
1615:
1183:
1157:
1140:
31:
2661:"Zeptosecond birth time delay in molecular photoionization"
1881:, one of the slowest-observed radioactive decay processes.
1165:
around the dial in this period as most analogue clocks are
203:
3960:
International Earth
Rotation and Reference Systems Service
1260:(28 d): The length of February, the shortest month of the
859:: The time needed to execute one machine cycle by a 1960s
752:; the time needed for light to travel 0.3 millimetres (mm)
176:, many decimal orders of magnitude smaller than a second.
2858:"Attosecond electron pulses are claimed as shortest ever"
1330:(365 d 6 h 9 min 10 s): The length of the true year, the
1135:(23 h 59 min 59 s): The length of one day with a removed
1784:(10 – 20 Ta): The estimated lifetime of low-mass stars (
919:: The cycle time for European 50 Hz AC electricity
2556:
The NIST Reference on
Constants, Units, and Uncertainty
2351:{\displaystyle {10}^{{10}^{{10}^{3,883,775,501,690}}}}
2280:{\displaystyle {10}^{{10}^{{10}^{{10}^{{10}^{1.1}}}}}}
914:: The period of a frame at a frame rate of 60 Hz.
4762:
2293:
2228:
2186:
2131:
586:
315:
206:, since it is not clear which version is being used.
3083:
In search of time the science of a curious dimension
2989:"Brain Facts and Figures: Sensory Apparatus: Vision"
1043:(9 min 12 s): The longest videos in the above study
949:(=0.1–0.4 s): The length of a single blink of an eye
4724:
4678:
4564:
4455:
4422:
4396:
4277:
4177:
4094:
4068:
3925:
3763:
3696:
3516:
1453:: (25.8 ka): The approximate time for the cycle of
824:: The time light takes to travel 30 cm (11.811 in)
183:, about 13.8 billion years—the time since the
62:. Unsourced material may be challenged and removed.
2350:
2279:
2213:
2158:
1417:: The approximate time since the beginning of the
1339:(1461 d 0 h 34 min 40 s): The elected term of the
626:
343:
1573:, believed to be caused by the impact of a large
1445:: (11.5 ka): The time since the beginning of the
1316:5.06703168 Ms: The rotational period of Mercury.
1291:(270 d): The approximate length of typical human
555:radiation released in the decay of a radioactive
168:The smallest meaningful increment of time is the
1283:(31 d): The length of the longest months of the
3373:(2). American Physical Society (APS): 198–206.
2601:Bocklage, Lars; et al. (29 January 2021).
1961:, the longest known half-life of any elemental
1810:(+100 Ta): The remaining time until the end of
1370:= over 31 years and 287 days = 1,000,000,000 s)
2052:in the early Universe also makes protons decay
1325:20.9967552 Ms: The rotational period of Venus.
4645:
3876:
3494:
3107:"Does Maya calendar predict 2012 apocalypse?"
1665:, approximately the order of magnitude of an
1248:(27.32 d): The length of the true month, the
8:
3014:Video Production Washington DC - MiniMatters
1691:(4.32 Ga): The length of the legendary unit
1531:(4.32 Ma): The length of the mythic unit of
1269:(29 d): The length of February in leap years
2578:http://www.bartleby.com/61/21/Y0022100.html
1118:(2 h): The typical length of feature films
4652:
4638:
4630:
3883:
3869:
3861:
3501:
3487:
3479:
3416:Heat Kernel Techniques and Quantum Gravity
1669:, the largest division of geological time.
1482:= over 31,600 years = 1,000,000,000,000 s)
964:
661:: The best timing control of laser pulses.
627:{\displaystyle \omega =2m_{e}c^{2}/\hbar }
236:
3423:
3409:
3407:
3405:
3312:
3251:
3041:
2918:
2908:
2883:Li, Wen; et al. (23 November 2010).
2841:
2784:
2678:
2628:
2314:
2309:
2307:
2302:
2300:
2295:
2292:
2263:
2258:
2256:
2251:
2249:
2244:
2242:
2237:
2235:
2230:
2227:
2201:
2196:
2191:
2185:
2146:
2141:
2136:
2130:
1627:(510 Ma): The approximate time since the
1586:(250 Ma): The approximate time since the
966:Units of measure greater than one second
616:
610:
600:
585:
333:
324:
316:
314:
122:Learn how and when to remove this message
4414:International Commission on Stratigraphy
2378:
2075:of a black hole with the mass of the Sun
1178:(24 h 0 min 1 s): One day with an added
781:, and one 9,192,631,770th of one second
259:Comparative examples & common units
27:Comparison of a wide range of timescales
4769:
3360:
3358:
3356:
3130:) (2009). "Search for Proton Decay via
2942:Chiappetta, Marco (23 September 2011).
2493:
1717:(10 Ga): The approximate lifetime of a
1240:(19 d): The length of a "month" of the
1105:, the shortest war in recorded history.
621:
344:{\displaystyle {\sqrt {\hbar G/c^{5}}}}
318:
3236:in a Large Water Cherenkov Detector".
2032:): The largest possible value for the
1985:, a date discovered on a stele at the
1232:= 11 d 13 h 46 min 40 s = 1,000,000 s)
1143:time scale. Such has not yet occurred.
1127:57.996 ks: one day on planet Neptune.
983:Comparative examples and common units
172:―the time light takes to traverse the
1989:Maya site, believed by archaeologist
1571:Cretaceous-Paleogene extinction event
1319:7.600544064 Ms: One year on Mercury.
7:
2159:{\displaystyle 10^{10^{10^{76.66}}}}
2044:and that the same process that made
1635:and the replacement of the previous
1598:. Also, the approximate time to the
671:: The shortest electron laser pulse
238:Units of measure less than a second
60:adding citations to reliable sources
2177:properties of statistical mechanics
2012:): The smallest possible value for
1826:. After this time has elapsed, the
1678:of the Sun will have increased its
1322:19.41414912 Ms: One year on Venus.
551:: The representative cycle time of
481:: The lower estimated bound on the
2214:{\displaystyle 10^{10^{10^{123}}}}
1522:(4 Ma): The typical lifetime of a
1490:(100 ka): approximate length of a
1421:era as of 2019 – 2,019 years, and
1083:: The record confinement time for
487:isotope 7 of hydrogen (Hydrogen-7)
282:(but not necessarily the shortest
25:
4134:Discrete time and continuous time
2117:): The approximate lifespan of a
1835:(311 Ta): The entire lifetime of
1618:to complete one orbit around the
1588:Permian-Triassic extinction event
1569:: The approximate time since the
4832:
4820:
4808:
4796:
4784:
4772:
4059:
4053:
3845:
3844:
3776:Earth's location in the Universe
3704:Back-of-the-envelope calculation
3399:See in particular equation (27).
3085:. New York: St. Martin's Press.
2121:with a mass of 20 trillion
1957:): The radioactive half-life of
1873:): The radioactive half-life of
687:One quadrillionth of one second
666:: The shortest X-ray laser pulse
655:One quintillionth of one second
36:
3709:Best-selling electronic devices
3475:to the lifespan of the universe
2456:Orders of magnitude (frequency)
2098:, if uncharged and non-rotating
2094:): The approximate lifespan of
1173:in which it cycles around once.
71:"Orders of magnitude" time
47:needs additional citations for
4207:History of timekeeping devices
3270:10.1103/PhysRevLett.102.141801
2175:arbitrarily many times due to
2166:Qs: The scale of an estimated
1455:precession of the Earth's axis
1433:: The approximate lifespan of
1341:President of the United States
1299:(365.25 d): The length of the
1:
2946:. HotHardware. Archived from
2587:. Accessed 19 December 2007.
2446:International System of Units
1820:ultimate fate of the Universe
1769:ultimate fate of the Universe
1730:(13.787 Ga): The approximate
1362:decades, centuries, millennia
1130:62.064 ks: one day on Uranus.
878:One thousandth of one second
742:One trillionth of one second
3771:Astronomical system of units
1614:, the time required for the
1425:the time since the birth of
1387:: (79 a): The typical human
908:One hundredth of one second
840:One millionth of one second
813:One billionth of one second
763:silicon-germanium transistor
761:one machine cycle by an IBM
757:: The typical lifetime of a
4661:Orders of magnitude of time
4154:Gravitational time dilation
3990:Barycentric Coordinate Time
2810:"Attosecond field emission"
2552:"CODATA Value: Planck time"
2527:"WMAP- Age of the Universe"
2016:consistent with experiment
1814:of the universe, under the
1560:, history of Earth and the
1440:, 28 May 1940 – 28 May 8113
1169:, less common are analogue
928:response to visual stimuli
189:cosmic microwave background
4881:
4855:Orders of magnitude (time)
4010:Geocentric Coordinate Time
3995:Barycentric Dynamical Time
3933:Coordinated Universal Time
2826:10.1038/s41586-022-05577-1
2476:Timeline of the far future
1644:(704 Ma): The approximate
1606:. Also, the length of one
1507:(Ma), or one million years
4667:
4164:Time-translation symmetry
4051:
3975:International Atomic Time
3902:
3840:
3822:The Scale of the Universe
3331:10.1103/revmodphys.69.337
3301:Reviews of Modern Physics
1934:
1888:
1851:
1796:
1751:future cosmological time
1742:
1549:
1464:
1355:
1217:
1060:
1017:
990:
982:
979:
976:
973:
970:
936:
901:
869:
831:
804:
748:: The mean lifetime of a
733:
678:
646:
516:
506:: The mean lifetime of a
451:
407:
374:
266:
258:
255:
252:
249:
242:
2608:Science Science Advances
2168:Poincaré recurrence time
1471:millennia to geological
1196:(24 h 39 min 35 s): One
1152:is 86.400 002 ks due to
1075:= 16 min 40 s = 1,000 s)
924:(=0.1–0.2 s): The human
893:for a computer hard disk
572:: The cycle time of the
215:astronomical Julian year
4424:Astronomical chronology
4397:Archaeology and geology
4104:Absolute space and time
4020:IERS Reference Meridian
4015:International Date Line
3926:International standards
3387:10.1103/physrevd.13.198
3239:Physical Review Letters
2910:10.1073/pnas.1014723107
2697:10.1126/science.abb9318
2466:Scale (analytical tool)
2119:supermassive black hole
1983:Mesoamerican Long Count
1771:. Under this scenario,
1633:multicellular organisms
1205:(7 d): One week of the
777:of the ground state of
771:photon corresponding to
3790:To the Moon and Beyond
3658:Specific heat capacity
2621:10.1126/sciadv.abc3991
2502:"Planck Time | COSMOS"
2352:
2281:
2215:
2160:
1763:(+34 Ga): Time to the
1404:: (1000 a, 1 ka): One
1399:: (100 a): One century
1101:: The duration of the
943:One tenth of a second
628:
345:
4752:terasecond and longer
4383:Weekday determination
4269:Sundial markup schema
3808:(1968 and 1977 films)
3128:Super-K Collaboration
3105:G. Jeffrey MacDonald
2583:10 March 2008 at the
2506:astronomy.swin.edu.au
2353:
2282:
2216:
2161:
1663:geological time scale
1657:(1000 Ma, 1 Ga): One
1503:(1000 ka, 1 Ma): One
1496:Quaternary glaciation
1438:Crypt of Civilization
1031:= 1 min 40 s = 100 s)
971:Multiple of a second
629:
346:
138:of time is usually a
4404:Chronological dating
4144:Theory of relativity
4005:Daylight saving time
2777:10.1364/OE.25.027506
2451:Logarithmic timeline
2361:Chaotic Inflationary
2291:
2226:
2184:
2129:
2036:, assuming that the
1537:, the Great Age, in
1067:minutes, hours, days
1052:to walk 1 kilometre
957:More than one second
851:: The lifetime of a
775:hyperfine transition
769:: The period of the
723:: The lifetime of a
584:
313:
298:: The length of one
233:Less than one second
56:improve this article
4865:Orders of magnitude
4614:Time value of money
4409:Geologic time scale
4264:History of sundials
4129:Cosmological decade
4081:Greenwich Mean Time
3912:Orders of magnitude
3510:Orders of magnitude
3434:1994hep.th...11193P
3379:1976PhRvD..13..198P
3323:1997RvMP...69..337A
3262:2009PhRvL.102n1801N
3052:2011NatPh...7..558A
2901:2010PNAS..10720219L
2895:(47): 20219–20222.
2786:20.500.11850/211882
2769:2017OExpr..2527506G
2763:(22): 27506–27518.
2689:2020Sci...370..339G
2471:Temporal resolution
2441:Geologic time scale
2381:
2071:): The approximate
1732:age of the Universe
1594:in the area of the
967:
501:isotope of Nitrogen
239:
187:as measured in the
181:age of the universe
4589:Mental chronometry
4217:Marine chronometer
4069:Obsolete standards
3816:(1996 documentary)
3745:Metric (SI) prefix
3081:Falk, Dan (2013).
2974:www.noteaccess.com
2864:. 17 February 2023
2591:: abbr. ys or ysec
2531:wmap.gsfc.nasa.gov
2379:
2348:
2277:
2211:
2156:
1719:main-sequence star
1629:Cambrian explosion
1592:volcanic eruptions
1524:biological species
1303:, also called the
1293:gestational period
1285:Gregorian calendar
1276:Gregorian calendar
1262:Gregorian calendar
1207:Gregorian calendar
1103:Anglo-Zanzibar War
965:
796:General Relativity
712:laser dissociation
624:
341:
237:
200:Gregorian calendar
136:order of magnitude
4760:
4759:
4627:
4626:
4437:Nuclear timescale
4119:Continuous signal
3858:
3857:
3755:Microscopic scale
3750:Macroscopic scale
3443:978-0-9630728-3-2
3367:Physical Review D
3060:10.1038/nphys2025
2987:Eric H. Chudler.
2820:(7945): 662–666.
2673:(6514): 339–341.
2431:
2430:
2377:
2376:
2367:whose mass is 10
2048:predominate over
1818:scenario for the
1777:negative pressure
1676:stellar evolution
1264:, in common years
954:
953:
339:
132:
131:
124:
106:
16:(Redirected from
4872:
4837:
4836:
4825:
4824:
4823:
4813:
4812:
4801:
4800:
4799:
4789:
4788:
4777:
4776:
4768:
4686:<1 attosecond
4654:
4647:
4640:
4631:
4328:Dominical letter
4259:Equation of time
4222:Marine sandglass
4063:
4057:
4035:Terrestrial Time
3892:Time measurement
3885:
3878:
3871:
3862:
3848:
3847:
3529:Angular momentum
3503:
3496:
3489:
3480:
3456:
3455:
3427:
3411:
3400:
3398:
3362:
3351:
3350:
3316:
3314:astro-ph/9701131
3296:
3290:
3289:
3255:
3235:
3234:
3233:
3226:
3225:
3218:
3217:
3216:
3209:
3208:
3200:
3199:
3198:
3191:
3190:
3182:
3181:
3180:
3173:
3172:
3165:
3164:
3163:
3156:
3155:
3147:
3146:
3145:
3138:
3137:
3119:
3113:
3103:
3097:
3096:
3078:
3072:
3071:
3045:
3024:
3018:
3017:
3016:. 11 March 2014.
3006:
3000:
2999:
2997:
2995:
2984:
2978:
2977:
2966:
2960:
2959:
2957:
2955:
2950:on 10 March 2015
2939:
2933:
2932:
2922:
2912:
2880:
2874:
2873:
2871:
2869:
2854:
2848:
2847:
2845:
2805:
2799:
2798:
2788:
2748:
2742:
2741:
2730:
2724:
2723:
2721:
2719:
2682:
2656:
2650:
2649:
2647:
2645:
2632:
2598:
2592:
2574:
2568:
2567:
2565:
2563:
2548:
2542:
2541:
2539:
2537:
2523:
2517:
2516:
2514:
2512:
2498:
2382:
2357:
2355:
2354:
2349:
2347:
2346:
2345:
2344:
2343:
2342:
2313:
2306:
2299:
2286:
2284:
2283:
2278:
2276:
2275:
2274:
2273:
2272:
2271:
2270:
2269:
2268:
2267:
2262:
2255:
2248:
2241:
2234:
2220:
2218:
2217:
2212:
2210:
2209:
2208:
2207:
2206:
2205:
2165:
2163:
2162:
2157:
2155:
2154:
2153:
2152:
2151:
2150:
2116:
2114:
2107:
2105:
2093:
2091:
2084:
2082:
2070:
2068:
2061:
2059:
2034:proton half-life
2031:
2029:
2022:
2014:proton half-life
2011:
2009:
2002:
2000:
1980:
1978:
1975:
1956:
1954:
1922:
1920:
1909:
1907:
1872:
1870:
1812:Stelliferous Era
1710:age of the Earth
1620:Milky Way Galaxy
1515:Australopithecus
1408:, also called a
968:
759:transition state
633:
631:
630:
625:
620:
615:
614:
605:
604:
363:system known as
358:
356:
350:
348:
347:
342:
340:
338:
337:
328:
317:
296:
240:
221:, which has one
127:
120:
116:
113:
107:
105:
64:
40:
32:
21:
4880:
4879:
4875:
4874:
4873:
4871:
4870:
4869:
4845:
4844:
4843:
4831:
4821:
4819:
4807:
4797:
4795:
4783:
4771:
4763:
4761:
4756:
4725:Positive powers
4720:
4679:Negative powers
4674:
4663:
4658:
4628:
4623:
4560:
4451:
4418:
4392:
4273:
4173:
4124:Coordinate time
4096:Time in physics
4090:
4064:
4058:
4049:
3921:
3898:
3889:
3859:
3854:
3836:
3759:
3692:
3608:Magnetic moment
3512:
3507:
3465:
3460:
3459:
3444:
3413:
3412:
3403:
3364:
3363:
3354:
3298:
3297:
3293:
3232:
3230:
3229:
3228:
3224:
3222:
3221:
3220:
3219:
3215:
3213:
3212:
3211:
3207:
3205:
3204:
3203:
3202:
3197:
3195:
3194:
3193:
3189:
3187:
3186:
3185:
3184:
3179:
3177:
3176:
3175:
3171:
3169:
3168:
3167:
3166:
3162:
3160:
3159:
3158:
3154:
3152:
3151:
3150:
3149:
3144:
3142:
3141:
3140:
3136:
3134:
3133:
3132:
3131:
3121:
3120:
3116:
3104:
3100:
3093:
3080:
3079:
3075:
3026:
3025:
3021:
3008:
3007:
3003:
2993:
2991:
2986:
2985:
2981:
2968:
2967:
2963:
2953:
2951:
2941:
2940:
2936:
2882:
2881:
2877:
2867:
2865:
2856:
2855:
2851:
2807:
2806:
2802:
2750:
2749:
2745:
2732:
2731:
2727:
2717:
2715:
2658:
2657:
2653:
2643:
2641:
2600:
2599:
2595:
2585:Wayback Machine
2575:
2571:
2561:
2559:
2550:
2549:
2545:
2535:
2533:
2525:
2524:
2520:
2510:
2508:
2500:
2499:
2495:
2490:
2485:
2436:
2372:
2308:
2301:
2294:
2289:
2288:
2257:
2250:
2243:
2236:
2229:
2224:
2223:
2222:
2197:
2192:
2187:
2182:
2181:
2180:
2142:
2137:
2132:
2127:
2126:
2125:
2112:
2110:
2103:
2101:
2099:
2089:
2087:
2080:
2078:
2076:
2066:
2064:
2057:
2055:
2053:
2027:
2025:
2020:
2007:
2005:
1998:
1996:
1994:
1976:
1973:
1971:
1952:
1950:
1918:
1916:
1905:
1903:
1868:
1866:
1841:Hindu mythology
1780:
1758:
1734:
1726:
1721:similar to the
1713:
1704:
1697:Hindu mythology
1687:
1670:
1653:
1640:
1637:Ediacaran biota
1623:
1539:Hindu mythology
1527:
1518:
1508:
1494:of the current
1475:
1449:
1441:
1429:
1413:
1400:
1395:
1393:developed world
1389:life expectancy
1363:
1347:
1335:
1326:
1295:
1287:
1279:
1270:
1265:
1256:
1242:Baha'i calendar
1225:
1209:
1201:
1192:
1174:
1144:
1131:
1114:
1106:
1097:
1087:, specifically
1068:
1039:
1025:
997:single seconds
959:
950:
915:
894:
885:
855:
847:
820:
790:
785:
765:
753:
719:
717:
698:
667:
662:
635:
606:
596:
582:
581:
568:
547:
502:
489:
354:
352:
329:
311:
310:
308:
294:
288:quantum gravity
281:
277:
246:
244:
235:
219:Julian calendar
174:Planck distance
128:
117:
111:
108:
65:
63:
53:
41:
28:
23:
22:
15:
12:
11:
5:
4878:
4876:
4868:
4867:
4862:
4857:
4847:
4846:
4842:
4841:
4829:
4817:
4805:
4793:
4781:
4758:
4757:
4755:
4754:
4749:
4744:
4739:
4734:
4728:
4726:
4722:
4721:
4719:
4718:
4713:
4708:
4703:
4698:
4693:
4688:
4682:
4680:
4676:
4675:
4668:
4665:
4664:
4659:
4657:
4656:
4649:
4642:
4634:
4625:
4624:
4622:
4621:
4616:
4611:
4609:Time metrology
4606:
4601:
4596:
4591:
4586:
4585:
4584:
4574:
4568:
4566:
4565:Related topics
4562:
4561:
4559:
4558:
4553:
4548:
4543:
4538:
4533:
4528:
4523:
4518:
4513:
4508:
4503:
4498:
4493:
4488:
4483:
4478:
4473:
4468:
4462:
4460:
4453:
4452:
4450:
4449:
4444:
4439:
4434:
4428:
4426:
4420:
4419:
4417:
4416:
4411:
4406:
4400:
4398:
4394:
4393:
4391:
4390:
4385:
4380:
4375:
4370:
4365:
4360:
4355:
4350:
4345:
4340:
4335:
4330:
4325:
4320:
4315:
4310:
4304:
4299:
4294:
4289:
4283:
4281:
4275:
4274:
4272:
4271:
4266:
4261:
4256:
4254:Dialing scales
4251:
4246:
4241:
4240:
4239:
4229:
4224:
4219:
4214:
4209:
4204:
4199:
4194:
4189:
4183:
4181:
4175:
4174:
4172:
4171:
4166:
4161:
4156:
4151:
4146:
4141:
4136:
4131:
4126:
4121:
4116:
4111:
4106:
4100:
4098:
4092:
4091:
4089:
4088:
4086:Prime meridian
4083:
4078:
4076:Ephemeris time
4072:
4070:
4066:
4065:
4052:
4050:
4048:
4047:
4045:180th meridian
4042:
4037:
4032:
4027:
4022:
4017:
4012:
4007:
4002:
3997:
3992:
3987:
3982:
3977:
3972:
3967:
3962:
3957:
3952:
3947:
3942:
3941:
3940:
3929:
3927:
3923:
3922:
3920:
3919:
3914:
3909:
3903:
3900:
3899:
3890:
3888:
3887:
3880:
3873:
3865:
3856:
3855:
3853:
3852:
3841:
3838:
3837:
3835:
3834:
3826:
3818:
3810:
3802:
3794:
3786:
3778:
3773:
3767:
3765:
3761:
3760:
3758:
3757:
3752:
3747:
3742:
3741:
3740:
3735:
3730:
3716:
3711:
3706:
3700:
3698:
3694:
3693:
3691:
3690:
3685:
3680:
3675:
3670:
3665:
3660:
3655:
3653:Sound pressure
3650:
3645:
3640:
3635:
3630:
3625:
3620:
3615:
3613:Magnetic field
3610:
3605:
3600:
3595:
3590:
3585:
3580:
3575:
3573:Energy density
3566:
3561:
3556:
3551:
3546:
3541:
3536:
3531:
3526:
3520:
3518:
3514:
3513:
3508:
3506:
3505:
3498:
3491:
3483:
3477:
3476:
3469:Exploring Time
3464:
3463:External links
3461:
3458:
3457:
3442:
3425:hep-th/9411193
3401:
3352:
3307:(2): 337–372.
3291:
3246:(14): 141801.
3231:
3223:
3214:
3206:
3196:
3188:
3178:
3170:
3161:
3153:
3143:
3135:
3114:
3112:27 March 2007.
3098:
3092:978-1429987868
3091:
3073:
3036:(7): 558–564.
3030:Nature Physics
3019:
3001:
2979:
2961:
2934:
2875:
2849:
2800:
2757:Optics Express
2743:
2725:
2651:
2593:
2569:
2543:
2518:
2492:
2491:
2489:
2486:
2484:
2483:
2478:
2473:
2468:
2463:
2458:
2453:
2448:
2443:
2437:
2435:
2432:
2429:
2428:
2425:
2422:
2418:
2417:
2411:
2408:
2404:
2403:
2400:
2397:
2393:
2392:
2389:
2386:
2375:
2374:
2363:model with an
2341:
2338:
2335:
2332:
2329:
2326:
2323:
2320:
2317:
2312:
2305:
2298:
2266:
2261:
2254:
2247:
2240:
2233:
2204:
2200:
2195:
2190:
2173:repeats itself
2149:
2145:
2140:
2135:
2096:Sagittarius A*
1944:
1942:
1939:
1933:
1926:
1925:
1897:
1895:
1892:
1887:
1883:
1882:
1860:
1858:
1855:
1850:
1846:
1845:
1828:Degenerate Era
1805:
1803:
1800:
1795:
1791:
1790:
1752:
1749:
1746:
1741:
1737:
1736:
1708:(4.5 Ga): The
1600:supercontinent
1596:Siberian Traps
1564:
1554:
1551:
1548:
1544:
1543:
1492:glacial period
1485:
1469:
1466:
1463:
1459:
1458:
1447:Holocene epoch
1373:
1360:
1357:
1354:
1350:
1349:
1332:orbital period
1250:orbital period
1235:
1224:weeks to years
1222:
1219:
1216:
1212:
1211:
1171:24-hour clocks
1150:mean solar day
1112:mean solar day
1078:
1065:
1062:
1059:
1055:
1054:
1033:
1022:
1019:
1016:
1012:
1011:
1005:
995:
992:
989:
985:
984:
981:
978:
975:
972:
958:
955:
952:
951:
944:
941:
938:
935:
931:
930:
909:
906:
903:
900:
896:
895:
889:: The typical
879:
876:
873:
868:
864:
863:
841:
838:
835:
830:
826:
825:
814:
811:
808:
803:
799:
798:
743:
740:
737:
732:
728:
727:
715:
688:
685:
682:
677:
673:
672:
656:
653:
650:
645:
641:
640:
623:
619:
613:
609:
603:
599:
595:
592:
589:
574:zitterbewegung
557:atomic nucleus
541:
540:of one second
521:
518:
515:
511:
510:
476:
456:
453:
450:
446:
445:
443:W and Z bosons
432:
412:
409:
406:
402:
401:
399:
379:
376:
373:
369:
368:
336:
332:
327:
323:
320:
306:
291:
278:
275:
270:
265:
261:
260:
257:
254:
251:
248:
234:
231:
130:
129:
44:
42:
35:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
4877:
4866:
4863:
4861:
4858:
4856:
4853:
4852:
4850:
4840:
4835:
4830:
4828:
4818:
4816:
4811:
4806:
4804:
4794:
4792:
4787:
4782:
4780:
4775:
4770:
4766:
4753:
4750:
4748:
4745:
4743:
4740:
4738:
4735:
4733:
4730:
4729:
4727:
4723:
4717:
4714:
4712:
4709:
4707:
4704:
4702:
4699:
4697:
4694:
4692:
4689:
4687:
4684:
4683:
4681:
4677:
4672:
4666:
4662:
4655:
4650:
4648:
4643:
4641:
4636:
4635:
4632:
4620:
4617:
4615:
4612:
4610:
4607:
4605:
4602:
4600:
4597:
4595:
4592:
4590:
4587:
4583:
4580:
4579:
4578:
4575:
4573:
4570:
4569:
4567:
4563:
4557:
4554:
4552:
4549:
4547:
4544:
4542:
4539:
4537:
4534:
4532:
4529:
4527:
4524:
4522:
4519:
4517:
4514:
4512:
4509:
4507:
4504:
4502:
4499:
4497:
4494:
4492:
4489:
4487:
4484:
4482:
4479:
4477:
4474:
4472:
4469:
4467:
4464:
4463:
4461:
4459:
4458:units of time
4454:
4448:
4447:Sidereal time
4445:
4443:
4440:
4438:
4435:
4433:
4432:Galactic year
4430:
4429:
4427:
4425:
4421:
4415:
4412:
4410:
4407:
4405:
4402:
4401:
4399:
4395:
4389:
4388:Weekday names
4386:
4384:
4381:
4379:
4378:Tropical year
4376:
4374:
4371:
4369:
4366:
4364:
4361:
4359:
4356:
4354:
4351:
4349:
4346:
4344:
4343:Intercalation
4341:
4339:
4336:
4334:
4331:
4329:
4326:
4324:
4321:
4319:
4316:
4314:
4311:
4309:(lunar Hijri)
4308:
4305:
4303:
4300:
4298:
4295:
4293:
4290:
4288:
4285:
4284:
4282:
4280:
4276:
4270:
4267:
4265:
4262:
4260:
4257:
4255:
4252:
4250:
4247:
4245:
4242:
4238:
4235:
4234:
4233:
4230:
4228:
4225:
4223:
4220:
4218:
4215:
4213:
4210:
4208:
4205:
4203:
4200:
4198:
4195:
4193:
4190:
4188:
4185:
4184:
4182:
4180:
4176:
4170:
4167:
4165:
4162:
4160:
4157:
4155:
4152:
4150:
4149:Time dilation
4147:
4145:
4142:
4140:
4137:
4135:
4132:
4130:
4127:
4125:
4122:
4120:
4117:
4115:
4112:
4110:
4107:
4105:
4102:
4101:
4099:
4097:
4093:
4087:
4084:
4082:
4079:
4077:
4074:
4073:
4071:
4067:
4062:
4056:
4046:
4043:
4041:
4038:
4036:
4033:
4031:
4028:
4026:
4023:
4021:
4018:
4016:
4013:
4011:
4008:
4006:
4003:
4001:
3998:
3996:
3993:
3991:
3988:
3986:
3985:24-hour clock
3983:
3981:
3980:12-hour clock
3978:
3976:
3973:
3971:
3968:
3966:
3963:
3961:
3958:
3956:
3953:
3951:
3948:
3946:
3943:
3939:
3936:
3935:
3934:
3931:
3930:
3928:
3924:
3918:
3915:
3913:
3910:
3908:
3905:
3904:
3901:
3897:
3893:
3886:
3881:
3879:
3874:
3872:
3867:
3866:
3863:
3851:
3843:
3842:
3839:
3832:
3831:
3827:
3824:
3823:
3819:
3817:
3815:
3814:Cosmic Voyage
3811:
3809:
3807:
3806:Powers of Ten
3803:
3800:
3799:
3795:
3792:
3791:
3787:
3784:
3783:
3779:
3777:
3774:
3772:
3769:
3768:
3766:
3762:
3756:
3753:
3751:
3748:
3746:
3743:
3739:
3736:
3734:
3731:
3729:
3726:
3725:
3724:
3720:
3717:
3715:
3714:Fermi problem
3712:
3710:
3707:
3705:
3702:
3701:
3699:
3695:
3689:
3686:
3684:
3681:
3679:
3676:
3674:
3671:
3669:
3666:
3664:
3661:
3659:
3656:
3654:
3651:
3649:
3646:
3644:
3641:
3639:
3636:
3634:
3631:
3629:
3626:
3624:
3621:
3619:
3616:
3614:
3611:
3609:
3606:
3604:
3601:
3599:
3596:
3594:
3591:
3589:
3586:
3584:
3581:
3579:
3576:
3574:
3570:
3567:
3565:
3562:
3560:
3557:
3555:
3552:
3550:
3547:
3545:
3542:
3540:
3537:
3535:
3532:
3530:
3527:
3525:
3522:
3521:
3519:
3515:
3511:
3504:
3499:
3497:
3492:
3490:
3485:
3484:
3481:
3474:
3470:
3467:
3466:
3462:
3453:
3449:
3445:
3439:
3435:
3431:
3426:
3421:
3417:
3410:
3408:
3406:
3402:
3396:
3392:
3388:
3384:
3380:
3376:
3372:
3368:
3361:
3359:
3357:
3353:
3348:
3344:
3340:
3336:
3332:
3328:
3324:
3320:
3315:
3310:
3306:
3302:
3295:
3292:
3287:
3283:
3279:
3275:
3271:
3267:
3263:
3259:
3254:
3249:
3245:
3241:
3240:
3129:
3125:
3118:
3115:
3111:
3108:
3102:
3099:
3094:
3088:
3084:
3077:
3074:
3069:
3065:
3061:
3057:
3053:
3049:
3044:
3039:
3035:
3031:
3023:
3020:
3015:
3011:
3005:
3002:
2990:
2983:
2980:
2975:
2971:
2965:
2962:
2949:
2945:
2938:
2935:
2930:
2926:
2921:
2916:
2911:
2906:
2902:
2898:
2894:
2890:
2886:
2879:
2876:
2863:
2862:Physics World
2859:
2853:
2850:
2844:
2839:
2835:
2831:
2827:
2823:
2819:
2815:
2811:
2804:
2801:
2796:
2792:
2787:
2782:
2778:
2774:
2770:
2766:
2762:
2758:
2754:
2747:
2744:
2739:
2735:
2729:
2726:
2714:
2710:
2706:
2702:
2698:
2694:
2690:
2686:
2681:
2676:
2672:
2668:
2667:
2662:
2655:
2652:
2640:
2636:
2631:
2626:
2622:
2618:
2614:
2610:
2609:
2604:
2597:
2594:
2590:
2586:
2582:
2579:
2573:
2570:
2557:
2553:
2547:
2544:
2532:
2528:
2522:
2519:
2507:
2503:
2497:
2494:
2487:
2482:
2479:
2477:
2474:
2472:
2469:
2467:
2464:
2462:
2459:
2457:
2454:
2452:
2449:
2447:
2444:
2442:
2439:
2438:
2433:
2426:
2423:
2421:2.4×10 hours
2420:
2419:
2416:
2412:
2409:
2407:6×10 minutes
2406:
2405:
2401:
2398:
2396:6×10 seconds
2395:
2394:
2390:
2387:
2384:
2383:
2373:
2370:
2369:Planck masses
2366:
2362:
2339:
2336:
2333:
2330:
2327:
2324:
2321:
2318:
2315:
2310:
2303:
2296:
2264:
2259:
2252:
2245:
2238:
2231:
2202:
2198:
2193:
2188:
2178:
2174:
2169:
2147:
2143:
2138:
2133:
2124:
2120:
2115:10 years
2108:
2097:
2092:10 years
2085:
2074:
2069:10 years
2062:
2051:
2047:
2043:
2039:
2035:
2030:10 years
2023:
2017:
2015:
2010:10 years
2003:
1992:
1988:
1984:
1979:10 years
1969:
1964:
1960:
1959:tellurium-128
1948:
1945:
1943:
1940:
1938:
1935:quettasecond
1932:
1928:
1927:
1924:
1914:
1901:
1898:
1896:
1893:
1891:
1885:
1884:
1880:
1876:
1864:
1861:
1859:
1856:
1854:
1848:
1847:
1844:
1842:
1838:
1834:
1829:
1825:
1821:
1817:
1813:
1809:
1806:
1804:
1801:
1799:
1793:
1792:
1789:
1787:
1783:
1778:
1774:
1770:
1766:
1762:
1756:
1753:
1750:
1747:
1745:
1739:
1738:
1735:
1733:
1729:
1724:
1720:
1716:
1711:
1707:
1702:
1698:
1694:
1690:
1685:
1681:
1677:
1673:
1668:
1664:
1660:
1656:
1651:
1647:
1643:
1638:
1634:
1630:
1626:
1621:
1617:
1613:
1609:
1608:galactic year
1605:
1601:
1597:
1593:
1589:
1585:
1580:
1576:
1572:
1568:
1565:
1563:
1559:
1555:
1552:
1546:
1545:
1542:
1540:
1536:
1535:
1530:
1525:
1521:
1517:
1516:
1511:
1506:
1502:
1497:
1493:
1489:
1486:
1484:
1483:
1481:
1474:
1470:
1467:
1461:
1460:
1457:
1456:
1452:
1448:
1444:
1439:
1436:
1432:
1428:
1424:
1423:traditionally
1420:
1416:
1411:
1407:
1403:
1398:
1394:
1390:
1386:
1381:
1377:
1374:
1372:
1371:
1369:
1361:
1358:
1352:
1351:
1348:
1346:
1342:
1338:
1333:
1329:
1323:
1320:
1317:
1314:
1312:
1308:
1307:
1302:
1298:
1294:
1290:
1286:
1282:
1277:
1273:
1268:
1263:
1259:
1255:
1251:
1247:
1243:
1239:
1236:
1234:
1233:
1231:
1223:
1220:
1214:
1213:
1210:
1208:
1204:
1199:
1195:
1189:
1188:digital clock
1185:
1181:
1177:
1172:
1168:
1163:
1159:
1155:
1154:tidal braking
1151:
1147:
1142:
1138:
1134:
1128:
1125:
1122:
1119:
1117:
1113:
1109:
1104:
1100:
1095:
1090:
1086:
1082:
1079:
1077:
1076:
1074:
1066:
1063:
1057:
1056:
1053:
1051:
1047:
1042:
1037:
1034:
1032:
1030:
1023:
1020:
1014:
1013:
1009:
1006:
1004:
1002:
996:
993:
987:
986:
980:Common units
969:
963:
956:
948:
945:
942:
939:
933:
932:
929:
927:
923:
918:
913:
910:
907:
904:
898:
897:
892:
888:
883:
880:
877:
874:
872:
866:
865:
862:
858:
854:
850:
845:
842:
839:
836:
834:
828:
827:
823:
818:
815:
812:
809:
807:
801:
800:
797:
793:
788:
784:
783:by definition
780:
776:
772:
768:
764:
760:
756:
751:
747:
744:
741:
738:
736:
730:
729:
726:
722:
713:
709:
705:
701:
696:
692:
689:
686:
683:
681:
675:
674:
670:
665:
660:
657:
654:
651:
649:
643:
642:
638:
617:
611:
607:
601:
597:
593:
590:
587:
579:
575:
571:
566:
562:
558:
554:
550:
545:
542:
539:
535:
531:
530:
525:
522:
519:
513:
512:
509:
505:
500:
496:
492:
488:
484:
480:
477:
474:
470:
466:
465:
460:
457:
454:
448:
447:
444:
440:
439:mean lifetime
436:
433:
430:
426:
422:
421:
416:
413:
410:
404:
403:
400:
397:
393:
389:
388:
383:
380:
377:
375:quectosecond
371:
370:
366:
362:
361:natural units
334:
330:
325:
321:
305:
301:
297:
292:
289:
285:
279:
274:
271:
269:
263:
262:
241:
232:
230:
228:
224:
220:
216:
212:
207:
205:
201:
195:
193:
190:
186:
182:
177:
175:
171:
166:
164:
160:
155:
153:
149:
148:million years
145:
141:
137:
126:
123:
115:
104:
101:
97:
94:
90:
87:
83:
80:
76:
73: –
72:
68:
67:Find sources:
61:
57:
51:
50:
45:This article
43:
39:
34:
33:
30:
19:
4685:
4660:
4594:Decimal time
4323:Astronomical
4202:Complication
4197:Atomic clock
3911:
3828:
3820:
3813:
3805:
3796:
3788:
3780:
3719:Powers of 10
3677:
3571: /
3524:Acceleration
3415:
3370:
3366:
3304:
3300:
3294:
3243:
3237:
3123:
3122:Nishino, H.
3117:
3109:
3101:
3082:
3076:
3033:
3029:
3022:
3013:
3004:
2992:. Retrieved
2982:
2973:
2964:
2952:. Retrieved
2948:the original
2937:
2892:
2888:
2878:
2866:. Retrieved
2861:
2852:
2817:
2813:
2803:
2760:
2756:
2746:
2737:
2728:
2716:. Retrieved
2670:
2664:
2654:
2642:. Retrieved
2615:: eabc3991.
2612:
2606:
2596:
2588:
2572:
2560:. Retrieved
2555:
2546:
2534:. Retrieved
2530:
2521:
2509:. Retrieved
2505:
2496:
2461:Planck units
2414:
2123:solar masses
2100:
2077:
2054:
2042:inflationary
2019:
2018:
1995:
1991:Linda Schele
1968:1,340,009 Qs
1967:
1966:
1946:
1936:
1930:
1912:
1911:
1899:
1862:
1832:
1831:
1807:
1782:300 – 600 Es
1781:
1760:
1759:
1754:
1727:
1714:
1705:
1688:
1684:dissociating
1671:
1654:
1641:
1624:
1611:
1583:
1582:
1566:
1532:
1528:
1519:
1513:
1509:
1500:
1499:
1487:
1479:
1477:
1476:
1450:
1442:
1435:time capsule
1430:
1427:Jesus Christ
1422:
1414:
1401:
1396:
1384:
1383:
1375:
1367:
1365:
1364:
1336:
1334:of the Earth
1327:
1324:
1321:
1318:
1315:
1310:
1304:
1296:
1288:
1280:
1271:
1266:
1257:
1245:
1244:
1237:
1229:
1227:
1226:
1202:
1193:
1175:
1162:leap seconds
1145:
1132:
1129:
1126:
1123:
1120:
1115:
1107:
1098:
1093:
1092:
1089:antihydrogen
1080:
1072:
1070:
1069:
1045:
1044:
1040:
1035:
1028:
1026:
1018:hectosecond
1007:
1000:
998:
960:
946:
921:
920:
916:
911:
902:centisecond
886:
881:
861:minicomputer
856:
848:
843:
821:
816:
791:
786:
766:
754:
750:bottom quark
745:
720:
710:apart after
699:
690:
668:
663:
658:
636:
569:
563:per emitted
548:
543:
538:sextillionth
533:
527:
523:
517:zeptosecond
503:
490:
478:
475:of a second
473:septillionth
468:
462:
458:
452:yoctosecond
434:
431:of a second
424:
418:
414:
408:rontosecond
398:of a second
391:
385:
382:Quectosecond
381:
365:Planck units
303:
293:
286:of time—see
283:
272:
208:
196:
178:
167:
156:
133:
118:
112:January 2020
109:
99:
92:
85:
78:
66:
54:Please help
49:verification
46:
29:
4827:Outer space
4791:Mathematics
4716:millisecond
4711:microsecond
4696:femtosecond
4604:System time
4599:Metric time
4318:Solar Hijri
4244:Water clock
4227:Radio clock
4159:Time domain
4139:Proper time
4025:Leap second
3907:Chronometry
3801:(1968 film)
3798:Cosmic Zoom
3793:(1964 film)
3785:(1957 book)
3782:Cosmic View
3668:Temperature
3643:Probability
3593:Illuminance
3473:Planck time
2868:17 February
2050:antibaryons
1890:ronnasecond
1879:alpha decay
1875:bismuth-209
1853:yottasecond
1824:black dwarf
1798:zettasecond
1773:dark energy
1612:cosmic year
1556:geological
1550:petasecond
1465:terasecond
1419:Anno Domini
1356:gigasecond
1337:126.2326 Ms
1328:31.55815 Ms
1301:Julian year
1218:megasecond
1180:leap second
1137:leap second
1061:kilosecond
991:decasecond
937:decisecond
871:millisecond
833:microsecond
680:femtosecond
559:(here as 2
524:Zeptosecond
508:Higgs Boson
499:Nitrogen-10
459:Yoctosecond
429:octillionth
415:Rontosecond
396:nonillionth
300:Planck time
268:Planck time
256:Definition
227:SI prefixes
170:Planck time
163:sexagesimal
144:microsecond
4860:Chronology
4849:Categories
4747:gigasecond
4742:megasecond
4737:kilosecond
4706:nanosecond
4701:picosecond
4691:attosecond
4619:Timekeeper
4572:Chronology
4556:Millennium
4442:Precession
4348:Julian day
4169:T-symmetry
4030:Solar time
4000:Civil time
3830:Cosmic Eye
2994:10 October
2970:"Notebook"
2718:17 October
2680:2010.08298
2536:12 October
2511:12 October
2488:References
2385:Multiples
2106:10 Qs
2083:10 Qs
2060:10 Qs
2021:10 Qs
2001:10 Qs
1941:Qs and on
1937:and beyond
1931:and onward
1816:heat death
1786:red dwarfs
1680:luminosity
1659:giga-annum
1652:isotope U.
1505:mega-annum
1410:kilo-annum
1406:millennium
1297:31.5576 Ms
1085:antimatter
806:nanosecond
779:cesium-133
735:picosecond
695:nanometres
648:attosecond
536:), is one
471:), is one
427:), is one
394:), is one
295:10 qs
192:rest frame
159:duodecimal
82:newspapers
18:Kilosecond
4803:Astronomy
4516:Fortnight
4363:Lunisolar
4353:Leap year
4287:Gregorian
4237:stopwatch
4212:Hourglass
4192:Astrarium
4109:Spacetime
4040:Time zone
3917:Metrology
3896:standards
3738:1000000th
3648:Radiation
3603:Luminance
3588:Frequency
3549:Computing
3395:0556-2821
3339:0034-6861
3253:0903.0676
3110:USA Today
3043:1104.4982
2834:1476-4687
2713:222412229
2562:1 October
2399:1 minute
1955:10 a
1921:10 a
1908:10 a
1871:10 a
1779:thereupon
1744:exasecond
1646:half-life
1579:Chicxulub
1431:194.67 Gs
1380:Unix time
1309:, symbol
1281:2.6784 Ms
1267:2.5056 Ms
1258:2.4192 Ms
1238:1.6416 Ms
1194:88.775 ks
1176:86.401 ks
1133:86.399 ks
912:1.6667 cs
891:seek time
622:ℏ
588:ω
553:gamma ray
495:half-life
483:half-life
357:10 s
319:ℏ
284:increment
223:leap year
152:base unit
4577:Duration
4551:Saeculum
4531:Olympiad
4373:Solstice
4302:Holocene
4279:Calendar
4179:Horology
3970:ISO 8601
3965:ISO 31-1
3850:Category
3697:See also
3638:Pressure
3623:Molarity
3539:Bit rate
3517:Quantity
3452:18633007
3347:12173790
3286:32385768
3278:19392425
3201:→
3148:→
3068:17151882
2954:28 April
2929:21059945
2795:29092222
2738:phys.org
2705:33060359
2644:19 April
2639:33514541
2581:Archived
2434:See also
2365:inflaton
2073:lifespan
2038:Big Bang
1830:begins.
1728:434.8 Ps
1575:asteroid
1562:Universe
1534:mahayuga
1526:on Earth
1345:Olympiad
1272:2.592 Ms
1203:604.8 ks
1003:= 10 s)
922:10–20 cs
787:114.6 ps
708:Ångstrom
706:atoms 6
578:electron
243:Multiple
185:Big Bang
4839:Science
4779:Geology
4765:Portals
4546:Century
4536:Lustrum
4466:Instant
4338:Equinox
4307:Islamic
4249:Sundial
4114:Chronon
3764:Related
3723:decades
3683:Voltage
3628:Numbers
3578:Entropy
3564:Density
3554:Current
3430:Bibcode
3375:Bibcode
3319:Bibcode
3258:Bibcode
3048:Bibcode
2920:2996685
2897:Bibcode
2843:9876796
2765:Bibcode
2685:Bibcode
2666:Science
2630:7846183
2410:1 hour
2391:Symbol
2046:baryons
1963:isotope
1900:3.16 Rs
1833:9.85 Zs
1765:Big Rip
1761:1.08 Es
1655:31.6 Ps
1650:uranium
1648:of the
1604:Pangaea
1501:31.6 Ts
1415:63.8 Gs
1402:31.6 Gs
1397:3.16 Gs
1391:in the
1343:or one
1252:of the
1246:2.36 Ms
1200:of Mars
1167:12-hour
1146:86.4 ks
1099:2.28 ks
1041:5.55 hs
1024:minutes
977:Symbol
857:4–16 μs
704:bromine
497:of the
387:quecto-
253:Symbol
247:second
140:decimal
96:scholar
4732:second
4673:of ten
4671:powers
4541:Decade
4496:Moment
4491:Minute
4486:Second
4456:Other
4313:Julian
4292:Hebrew
3938:offset
3833:(2012)
3825:(2010)
3688:Volume
3673:Torque
3598:Length
3569:Energy
3544:Charge
3450:
3440:
3393:
3345:
3337:
3284:
3276:
3227:π
3210:μ
3174:π
3124:et al.
3089:
3066:
2927:
2917:
2840:
2832:
2814:Nature
2793:
2711:
2703:
2637:
2627:
2558:. NIST
2424:1 day
2380:Other
1863:600 Ys
1837:Brahma
1715:315 Ps
1706:143 Ps
1701:Brahma
1689:136 Ps
1584:7.9 Ps
1529:137 Ts
1520:130 Ts
1498:epoch
1488:3.1 Ts
1473:epochs
1451:814 Gs
1443:363 Gs
1385:2.5 Gs
1376:1.5 Gs
1116:7.2 ks
1108:3.6 ks
1094:1.8 ks
1046:7.1 hs
947:1–4 ds
926:reflex
887:4–8 ms
849:2.2 μs
792:696 ps
767:109 ps
721:290 fs
700:140 fs
637:247 zs
576:of an
565:photon
544:1.3 zs
534:second
529:zepto-
504:156 ys
493:: The
491:143 ys
469:second
464:yocto-
437:: The
435:300 rs
425:second
420:ronto-
392:second
98:
91:
84:
77:
69:
4815:Stars
4582:music
4521:Month
4481:Jiffy
4476:Shake
4471:Flick
4368:Solar
4358:Lunar
4333:Epact
4297:Hindu
4232:Watch
4187:Clock
3733:100th
3663:Speed
3633:Power
3583:Force
3471:from
3448:S2CID
3420:arXiv
3343:S2CID
3309:arXiv
3282:S2CID
3248:arXiv
3064:S2CID
3038:arXiv
2709:S2CID
2675:arXiv
2388:Unit
2148:76.66
1972:4.134
1947:69 Qs
1913:32 Rs
1693:Kalpa
1672:+1 Ga
1642:22 Ps
1625:16 Ps
1577:into
1510:79 Ts
1306:annum
1289:23 Ms
1191:3600.
1008:6 das
1001:1 das
974:Unit
725:tauon
714:of Br
669:53 as
664:43 as
659:12 as
479:23 ys
250:Unit
211:annum
146:or a
103:JSTOR
89:books
4526:Year
4511:Week
4501:Hour
3955:DUT1
3894:and
3728:10th
3721:and
3678:Time
3618:Mass
3559:Data
3534:Area
3438:ISBN
3391:ISSN
3335:ISSN
3274:PMID
3183:and
3087:ISBN
2996:2011
2956:2012
2925:PMID
2889:PNAS
2870:2023
2830:ISSN
2791:PMID
2720:2020
2701:PMID
2646:2023
2635:PMID
2589:note
2564:2011
2538:2021
2513:2021
2481:Year
2415:(hr)
2402:min
2287:Qs (
2040:was
1987:Coba
1808:3 Zs
1567:2 Ps
1558:eras
1480:1 Ts
1412:(ka)
1368:1 Gs
1254:Moon
1230:1 Ms
1160:use
1081:1 ks
1073:1 ks
1036:2 hs
1029:1 hs
994:das
917:2 cs
882:1 ms
853:muon
844:1 μs
822:1 ns
817:1 ns
773:the
755:1 ps
746:1 ps
691:1 fs
570:4 zs
549:2 zs
353:5.39
245:of a
75:news
4669:by
4506:Day
3383:doi
3327:doi
3266:doi
3244:102
3056:doi
2915:PMC
2905:doi
2893:107
2838:PMC
2822:doi
2818:613
2781:hdl
2773:doi
2693:doi
2671:370
2625:PMC
2617:doi
2340:690
2334:501
2328:775
2322:883
2265:1.1
2203:123
2111:1.7
2102:5.4
2088:1.3
2026:3.2
2006:8.2
1997:2.6
1974:105
1951:2.2
1929:10
1894:Rs
1886:10
1877:by
1857:Ys
1849:10
1839:in
1802:Zs
1794:10
1748:Es
1740:10
1723:Sun
1695:in
1667:eon
1616:Sun
1610:or
1602:of
1553:Ps
1547:10
1468:Ts
1462:10
1359:Gs
1353:10
1221:Ms
1215:10
1198:sol
1184:UTC
1182:on
1158:UTC
1141:UTC
1139:on
1064:ks
1058:10
1050:m/s
1021:hs
1015:10
988:10
940:ds
934:10
905:cs
899:10
875:ms
867:10
837:μs
829:10
810:ns
802:10
739:ps
731:10
684:fs
676:10
652:as
644:10
561:MeV
526:, (
520:zs
514:10
485:of
461:, (
455:ys
449:10
441:of
417:, (
411:rs
405:10
384:, (
378:qs
372:10
264:10
213:or
161:or
134:An
58:by
4851::
3950:ΔT
3945:UT
3446:.
3436:.
3428:.
3404:^
3389:.
3381:.
3371:13
3369:.
3355:^
3341:.
3333:.
3325:.
3317:.
3305:69
3303:.
3280:.
3272:.
3264:.
3256:.
3242:.
3062:.
3054:.
3046:.
3032:.
3012:.
2972:.
2923:.
2913:.
2903:.
2891:.
2887:.
2860:.
2836:.
2828:.
2816:.
2812:.
2789:.
2779:.
2771:.
2761:25
2759:.
2755:.
2736:.
2707:.
2699:.
2691:.
2683:.
2669:.
2663:.
2633:.
2623:.
2611:.
2605:.
2554:.
2529:.
2504:.
2427:d
2413:h
2311:10
2304:10
2297:10
2260:10
2253:10
2246:10
2239:10
2232:10
2199:10
2194:10
2189:10
2144:10
2139:10
2134:10
1965:.
1843:.
1788:)
1639:.
1541:.
1378::
1313:.
634:)
532:+
467:+
423:+
390:+
367:.
351:≈
309:=
290:)
204:SI
4767::
4653:e
4646:t
4639:v
3884:e
3877:t
3870:v
3502:e
3495:t
3488:v
3454:.
3432::
3422::
3397:.
3385::
3377::
3349:.
3329::
3321::
3311::
3288:.
3268::
3260::
3250::
3192:p
3157:e
3139:p
3126:(
3095:.
3070:.
3058::
3050::
3040::
3034:7
2998:.
2976:.
2958:.
2931:.
2907::
2899::
2872:.
2846:.
2824::
2797:.
2783::
2775::
2767::
2740:.
2722:.
2695::
2687::
2677::
2648:.
2619::
2613:7
2566:.
2540:.
2515:.
2371:.
2337:,
2331:,
2325:,
2319:,
2316:3
2113:×
2109:(
2104:×
2090:×
2086:(
2081:×
2079:4
2067:×
2065:2
2063:(
2058:×
2056:6
2028:×
2024:(
2008:×
2004:(
1999:×
1977:×
1970:(
1953:×
1949:(
1919:×
1917:1
1915:(
1906:×
1904:1
1902:(
1869:×
1867:2
1865:(
1757:.
1725:.
1703:.
1622:.
1478:(
1366:(
1311:a
1228:(
1071:(
1027:(
999:(
718:.
716:2
618:/
612:2
608:c
602:e
598:m
594:2
591:=
580:(
567:)
355:×
335:5
331:c
326:/
322:G
307:P
304:t
302:(
276:P
273:t
125:)
119:(
114:)
110:(
100:·
93:·
86:·
79:·
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20:)
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