Knowledge

12-hour clock

Source 📝

3790: 270: 3784: 410: 3565: 566: 975: 399: 3575: 783:("AM" and "PM"), uppercase letters with periods, or lowercase letters ("am" and "pm" or, "a.m." and "p.m."). With the advent of computer generated and printed schedules, especially airlines, advertising, and television promotions, the "M" character is often omitted as providing no additional information as in "9:30A" or "10:00P". 1500:'s "Frequently asked questions (FAQ)" web page, recommend that it is clearest if one refers to "noon" or "12:00 noon" and "midnight" or "12:00 midnight" (rather than to "12:00 p.m." and "12:00 a.m."). The NIST website states that "12 a.m. and 12 p.m. are ambiguous and should not be used." 1035:
Minutes may be expressed as an exact number of minutes past the hour specifying the time of day (e.g., 6:32 p.m. is "six thirty-two"). Additionally, when expressing the time using the "past (after)" or "to (before)" formula, it is conventional to choose the number of minutes below 30 (e.g.,
379:
Most analog clocks and watches today use the 12-hour dial, on which the shorter hour hand rotates once every 12 hours and twice in one day. Some analog clock dials have an inner ring of numbers along with the standard 1-to-12 numbered ring. The number 12 is paired either with a 00 or a 24, while
1538:
Likewise, some U.S. style guides recommend either clarifying "midnight" with other context clues, such as specifying the two dates between which it falls, or not referring to the term at all. For an example of the latter method, "midnight" is replaced with "11:59 p.m." for the end of a day or
934:
Moreover, in situations where the relevant hour is obvious or has been recently mentioned, a speaker might omit the hour and just say "quarter to (the hour)", "half past" or "ten 'til" to avoid an elaborate sentence in informal conversations. These forms are often commonly used in television and
280:
The natural day-and-night division of a calendar day forms the fundamental basis as to why each day is split into two cycles. Originally there were two cycles: one cycle which could be tracked by the position of the Sun (day), followed by one cycle which could be tracked by the Moon and stars
725:
Most other languages lack formal abbreviations for "before noon" and "after noon", and their users use the 12-hour clock only orally and informally. However, in many languages, such as Russian and Hebrew, informal designations are used, such as "9 in the morning" or "3 in the night".
702: – after, post). However, noon is rarely abbreviated in either of these languages, noon normally being written in full. In Portuguese, there are two official options and many others used, for example, using 21:45, 21h45 or 21h45min (official ones) or 21:45 or 9:45 p.m. In 938:
In describing a vague time of day, a speaker might say the phrase "seven-thirty, eight" to mean sometime around 7:30 or 8:00. Such phrasing can be misinterpreted for a specific time of day (here 7:38), especially by a listener not expecting an estimation. The phrase
883:
In older English, it was common for the number 25 to be expressed as "five-and-twenty". In this way the time 8:35 may be phrased as "five-and-twenty to 9", although this styling fell out of fashion in the later part of the 1900s and is now rarely used.
371:
During the 15th and 16th centuries, the 12-hour analog dial and time system gradually became established as standard throughout Northern Europe for general public use. The 24-hour analog dial was reserved for more specialized applications, such as
1551:
schedules, though some schedules use other conventions. Occasionally, when trains run at regular intervals, the pattern may be broken at midnight by displacing the midnight departure one or more minutes, such as to 11:59 p.m. or 12:01 a.m.
497:
is the standard system used, especially in writing. Some nations in Europe and Latin America use a combination of the two, preferring the 12-hour system in colloquial speech but using the 24-hour system in written form and in formal contexts.
281:(night). This eventually evolved into the two 12-hour periods which are used today, one called "a.m." starting at midnight and another called "p.m." starting at noon. Noon itself is rarely abbreviated today; but if it is, it is denoted "m." 1455:(m.)) is neither before nor after itself, the terms a.m. and p.m. do not apply. Although "12 m." was suggested as a way to indicate noon, this is seldom done and also does not resolve the question of how to indicate midnight. 880:. For example, 5:15 can be phrased "(a) quarter past five" or "five-fifteen"; 5:30 can be "half past five", "five-thirty" or simply "half five". The time 8:45 may be spoken as "eight forty-five" or "(a) quarter to nine". 1535:"FAQ-Time" web page states "In cases where the context cannot be relied upon to place a particular event, the pair of days straddling midnight can be quoted"; also "the terms 12 a.m. and 12 p.m. should be avoided." 493:. Even in those countries where the 12-hour clock is predominant, there are frequently contexts (such as science, medicine, the military or transport) in which 24-hour clock is preferred. In most countries, however, the 2226: 729:
When abbreviations and phrases are omitted, one may rely on sentence context and societal norms to reduce ambiguity. For example, if one commutes to work at "9:00", 9:00 a.m. may be implied, but if a
2336: 3688: 77:, translating to "after midday"). Each period consists of 12 hours numbered: 12 (acting as 0), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. The 12-hour clock has been developed since the 3611: 2509: 1459: 857:
In speaking, it is common to round the time to the nearest five minutes and/or express the time as the past (or to) the closest hour; for example, "five past five" (5:05). Minutes
1493:
used 12 a.m. for noon and 12 p.m. for midnight until its 2008 edition. At this point it reversed these designations and then retained that change in its 2016 revision.
441:
In several countries the 12-hour clock is the dominant written and spoken system of time, predominantly in nations that were part of the former British Empire, for example, the
786:
Some style guides suggest the use of a space between the number and the a.m. or p.m. abbreviation. Style guides recommend not using a.m. and p.m. without a time preceding it.
2066: 521:
almanac for 1795 and a similar almanac for 1773 published in London used them. Other than in English-speaking countries and some Spanish-speaking countries, the terms
2215: 2304: 2265: 1956: 2193: 1914: 1721: 1497: 1352: 950:
Some more ambiguous phrasing might be avoided. Within five minutes of the hour, the phrase "five of seven" (6:55) can be heard "five-oh-seven" (5:07). "Five
1532: 3604: 553:, activate the 12-hour notation by default for a limited number of language and region settings. This behaviour can be changed by the user, such as with the 100:
should be represented: in English-speaking countries, "12 p.m." indicates 12 o'clock noon, while "12 a.m." means 12 o'clock midnight.
2373: 1190: 368:
Elsewhere in Europe, numbering was more likely to be based on the 24-hour system (I to XXIV). The 12-hour clock was used throughout the British empire.
1906: 1748: 4142: 1490: 322:: daylight was divided into 12 equal hours (thus hours having varying length throughout the year) and the night was divided into four watches. 3597: 3174: 3010: 1609: 790: 393: 1725: 2450: 4368: 2639: 2491: 2407: 887:
Instead of meaning 5:30, the "half five" expression is sometimes used to mean 4:30, or "halfway to five", especially for regions such as the
4111: 2555: 1589:(0 a.m.) for the start of the day, making the Japanese convention the opposite of the English usage of 12 a.m. and 12 p.m. 380:
the numbers 1 through 11 are paired with the numbers 13 through 23, respectively. This modification allows the clock to also be read in
273: 37:"Ante meridiem" redirects here. For the meridian 180° both east and west of the prime meridian in a geographical coordinate system, see 2133: 2577: 2159: 4373: 3862: 2015: 1571:(0 p.m.), making the hours numbered sequentially from 0 to 11 in both halves of the day. Alternatively, noon may be written as 1022: 1850: 1986: 458: 2329: 3124: 2779: 1556: 1884: 3935: 3003: 2075: 1000: 996: 1799: 357:
periods in sequence. This is known as the double-XII system and can be seen on many surviving clock faces, such as those at
2514: 4116: 1824: 3086: 2293: 2254: 1952: 1937: 2185: 1036:
6:32 p.m. is conventionally "twenty-eight minutes to seven" rather than "thirty-two minutes past six").
793:: some use a colon, others use a period (full stop), and still others use the letter h. (In some usages, particularly " 4071: 4051: 3997: 3882: 3718: 3377: 1097:). Minutes ":10" to ":59" are pronounced as their usual number-words. For instance, 6:02 a.m. can be pronounced 801:, there is no separator between hours and minutes. This style is not generally seen when the 12-hour clock is used.) 3289: 3738: 3723: 3661: 3640: 2729: 2709: 325:
The first mechanical clocks in the 14th century, if they had dials at all, showed all 24 hours using the
1936:. Printed for the Company of Stationers, and sold by R. Horsfield, at Stationers-hall, near Ludgate-street. 1795. 3892: 3703: 3440: 3169: 2719: 2632: 1539:"12:01 a.m." for the start of a day. That has become common in the United States in legal contracts and for 3139: 2612: 985: 888: 869:
the hour mean those minutes are subtracted; "ten of five", "ten 'til five", and "ten to five" all mean 4:50.
537:
In most countries, computers by default show the time in 24-hour notation. Most operating systems, including
4152: 3930: 3832: 3748: 3743: 3395: 3046: 2533: 1004: 989: 2749: 2056:
Hacker, Diana, A Writer's Reference, six edition, Bedford, St Martin's, Boston, 2007, section M4-c, p.308.
1752: 1619: 31: 4305: 3210: 3155: 3109: 3094: 2739: 358: 269: 1717: 4132: 4046: 3872: 3733: 3461: 3430: 2879: 2774: 2625: 2578:"Cheshunt/Enfield Town to London Liverpool Street via Seven Sisters service Interim train timetables" 78: 809:
Unicode specifies codepoints for "a.m." and "p.m." symbols, which are intended to be used only with
4342: 4137: 3992: 3857: 3809: 3678: 3335: 2794: 2754: 2458: 1644: 446: 334: 326: 4317: 4091: 4015: 3945: 3284: 3262: 3129: 2953: 2924: 2859: 2852: 920: 373: 2547: 2482:
Paula Froke, Anna Joe Bratton, Oskar Garcia, Jeff McMillan & Jerry Schwart, Eds., 54th ed.,
1392:
These styles are ambiguous with respect to whether midnight is at the start or end of each day.
4165: 4030: 3847: 3365: 3244: 3144: 2997: 2900: 2804: 2487: 2403: 2011: 554: 538: 319: 3578: 384:. This kind of 12-hour clock can be found in countries where the 24-hour clock is preferred. 84:
The 12-hour time convention is common in several English-speaking nations and former British
4310: 4056: 4035: 3987: 3950: 3763: 3483: 3471: 3299: 3267: 3099: 2968: 2884: 2874: 2789: 1506:
specifies that midnight "is part of the day that is ending, not the one that is beginning."
1486:(1999) provided a diagram in which 12 a.m. means noon and 12 p.m. means midnight. 924: 916: 912: 896: 618: 598: 594: 381: 362: 342: 1774: 1415:
It is not always clear what times "12:00 a.m." and "12:00 p.m." denote. From the
4041: 4020: 3852: 3824: 3545: 3410: 3387: 3355: 3307: 3294: 3257: 3239: 2869: 2864: 2588: 908: 338: 50:
is a time convention in which the 24 hours of the day are divided into two periods:
1854: 1053:). This may be followed by the "a.m." or "p.m." designator, though some phrases such as 861:
the hour means those minutes are added to the hour; "ten past five" means 5:10. Minutes
4337: 4096: 4086: 4025: 3982: 3814: 3804: 3773: 3673: 3645: 3488: 3478: 3277: 3149: 3119: 3104: 2889: 2847: 2842: 2714: 1604: 1321: 904: 900: 892: 810: 703: 602: 442: 346: 38: 1978: 1404:
NIST recommends using 11:59 p.m. and 12:01 a.m. to disambiguate when needed.
409: 4362: 4224: 4175: 4160: 4106: 3877: 3713: 3624: 3568: 3518: 3466: 3400: 3372: 3360: 3350: 3340: 3222: 3066: 2992: 2941: 2894: 2809: 2769: 2764: 2692: 2341: 2007: 1599: 1039:
In spoken English, full hours are often represented by the numbered hour followed by
928: 798: 794: 764: 570: 494: 450: 289: 112: 4322: 4209: 4204: 4199: 4186: 3925: 3540: 3534: 3200: 3134: 3056: 2987: 2936: 2784: 2724: 1876: 1614: 813:(CJK) character sets, as they take up exactly the same space as one CJK character: 731: 565: 470: 315: 85: 3589: 4332: 4327: 3972: 3955: 3887: 3867: 3753: 3635: 3550: 3528: 3435: 3420: 3215: 3195: 3185: 3114: 3071: 3051: 2980: 2799: 2701: 2504: 1528:." Phrases such as "12 a.m." and "12 p.m." are not mentioned at all. 1120: 1040: 974: 776: 760: 490: 466: 301: 297: 285: 593:(often written "am" and "pm", "AM" and "PM", or "A.M." and "P.M.") are used in 398: 4347: 4300: 4284: 4170: 4076: 3897: 3758: 3728: 3666: 3445: 3345: 3252: 3227: 3030: 2814: 2032: 482: 311:, these clocks divided their respective times of use into 12 hours each. 1928: 1691:
The use of AM or PM to designate either noon or midnight can cause ambiguity.
1471:
denotes noon. Because of the potential for confusion, it is advisable to use
17: 4244: 4081: 3965: 3940: 3920: 3837: 3789: 3783: 3768: 3508: 3425: 3061: 2973: 2948: 2929: 2819: 2607: 1675: 780: 542: 462: 330: 4279: 4259: 4101: 4007: 3907: 3698: 3693: 3076: 2837: 2829: 2687: 2677: 1624: 1540: 1125: 763:
referenced, the abbreviations "a.m." and "p.m." are variously written in
478: 413:
World map showing the usage of 12 or 24-hour clock in different countries
97: 4274: 4264: 4194: 4066: 3977: 3842: 3415: 3405: 3327: 3318: 3303: 3205: 3190: 3035: 2958: 2667: 2366: 1680:
Encyclopædia Britannica. Encyclopædia Britannica Online Library Edition
1629: 935:
radio broadcasts that cover multiple time zones at one-hour intervals.
836: 819: 293: 2225:. U.S. Government Publishing Office. January 1953. pp. 152, 267. 1800:"U.S. Government Printing Office Style Manual - Chapter 12 - Numerals" 4269: 4219: 4214: 3513: 2672: 1697:
For different opinions on representation of midday and midnight, see
486: 454: 2402:(17th ed.). University of Chicago Press. 2017. paragraph 9.38. 4249: 4061: 3960: 3915: 3523: 3272: 2963: 2919: 2911: 1639: 1548: 1416: 963: 582: 564: 550: 546: 474: 408: 403: 397: 268: 55: 4254: 4239: 4229: 3683: 3620: 2662: 2648: 2371:[Question 4-1) Is noon 12 a.m.? Or 12 p.m.?]. 1634: 1134: 895:. This meaning follows the pattern choices of many Germanic and 734:
is scheduled to begin at "9:00", it may begin at 9:00 p.m.
93: 3593: 2621: 2337:
National Institute of Information and Communications Technology
4234: 1544: 968: 747:
The terms "a.m." and "p.m." are abbreviations of the Latin
3689:
International Earth Rotation and Reference Systems Service
1877:"Berlin instruments of the old Eg.time of day destination" 1932:
Rider's British merlin: for the year of Our Lord God 1795
1662: 1660: 2510:
The American Heritage Dictionary of the English Language
2484:
The Associated Press Stylebook and Briefing on Media Law
2303:. U.S. Government Publishing Office. 2008. p. 271. 2074:. US Air Force. 27 May 2015. p. 356. Archived from 1460:
The American Heritage Dictionary of the English Language
2617: 2216:"United States Government Printing Office Style Manual" 1953:"How to customize how the time is displayed in Windows" 2134:"Number five-and-twenty: A fading linguistic practice" 1112: 501:
The 12-hour clock in speech often uses phrases such as
102: 2264:. U.S. Government Publishing Office. 2000. page 156. 1577:(12 a.m.) and midnight at the end of the day as 962:"O'clock" redirects here. For the o'clock watch, see 954:
seven" or even "six fifty-five" clarifies this.
695: 682: 668: 654: 641: 627: 485:, and others follow this convention as well, such as 300:
for night-time use were found in the tomb of Pharaoh
4293: 4184: 4151: 4125: 4006: 3906: 3823: 3797: 3654: 3501: 3454: 3386: 3326: 3316: 3238: 3165: 3085: 3026: 2910: 2828: 2738: 2700: 2686: 2655: 1698: 557:operating system's "Region and Language" settings. 249: 89: 1930:National Library of Australia catalogue entry for 329:, influenced by astronomers' familiarity with the 81:and reached its modern form in the 16th century. 1449:(p.m.) means after midday. Since "noon" (midday, 1077:Minutes ":01" to ":09" are usually pronounced as 1055:in the morning, in the afternoon, in the evening, 2414:Although noon can be expressed as 12:00 m. (m = 1061:more commonly follow analog-style terms such as 30:"AM and PM" redirects here. For other uses, see 2340:(in Japanese). 15 February 1989. Archived from 2105:(3rd ed.). Boston: Houghton Mifflin. 1992. 1400: 1398: 284:The 12-hour clock can be traced back as far as 2294:"U.S. Government Printing Office Style Manual" 2255:"U.S. Government Printing Office Style Manual" 1915:National Institute of Standards and Technology 1722:National Institute of Standards and Technology 1584: 1578: 1572: 1566: 1560: 1297: 1289: 1281: 1268: 1260: 1252: 876:, and thirty minutes is often known as a 244: 242: 240: 3605: 2633: 690: 676: 662: 649: 635: 621: 333:and sundial and by their desire to model the 88:, as well as a few other countries. There is 8: 2587:. 17 May 2015. pp. 7, 8. Archived from 891:and other areas that have been particularly 2374:National Astronomical Observatory of Japan 1450: 1443: 1435: 1420: 1388: 1386: 1384: 1382: 1380: 1378: 1003:. Unsourced material may be challenged and 754: 748: 612: 606: 71: 59: 3612: 3598: 3590: 3323: 2697: 2640: 2626: 2618: 2530:Mapping Time: the Calendar and its History 2394: 2392: 2288: 2286: 2249: 2247: 2107:s.v. usage note at end of "quarter" entry. 1829:Resources of the Language Portal of Canada 276:, showing the double-XII numbering scheme. 2033:"A more efficient way to denote am or pm" 1712: 1710: 1708: 1706: 1069:itself may be omitted, telling a time as 1023:Learn how and when to remove this message 4143:International Commission on Stratigraphy 1491:United States Government Printing Office 1231:U.S. Government Publishing Office (2008) 1213:U.S. Government Publishing Office (2000) 1101:whereas 6:32 a.m. could be told as 2186:"TVTimes magazine 21-27 May 1983 part1" 1656: 1610:Date and time representation by country 1374: 872:Fifteen minutes is often called a 394:Date and time representation by country 341:these dials generally used the 12-hour 236: 2445: 2443: 1998: 1996: 1728:from the original on 21 September 2018 1671:. Vol. 28. 1986. pp. 660 2a. 1489:Historically, the style manual of the 1114:Time according to various conventions 489:and the former American colony of the 335:Earth's apparent motion around the Sun 65:, translating to "before midday") and 2478: 2476: 2428: 2426: 2361: 2359: 2334:[12 AM? or 0 PM?]. 2271:from the original on 5 September 2019 2232:from the original on 5 September 2019 1887:from the original on 15 November 2006 1565:(0 a.m.) and noon is written as 958:Formal speech and times to the minute 7: 3574: 2517:from the original on 9 January 2014. 2486:, New York: Basic Books, June 2019, 2196:from the original on 18 October 2012 1959:from the original on 29 October 2013 1951:Lawrence Abrams (13 December 2012). 1001:adding citations to reliable sources 1747:Addington, Susan (25 August 2016). 577:with a dot to the left of the hour. 529:are seldom used and often unknown. 274:Exeter Cathedral Astronomical Clock 2558:from the original on 17 March 2018 2310:from the original on 12 April 2019 1989:from the original on 20 July 2011. 25: 3863:Discrete time and continuous time 1983:Diccionario panhispánico de dudas 1940:from the original on 22 May 2013. 1853:. 13 October 2008. Archived from 1191:U.S. Government Publishing Office 759:(after midday). Depending on the 3788: 3782: 3573: 3564: 3563: 2436:(11th ed.). 1999. page 288. 973: 853:Informal speech and rounding off 296:for daytime use and an Egyptian 2548:"GPO Style Manual. 2016. p.236" 2451:"National Physical Laboratory, 2132:Trudgill, Peter (17 May 2020). 1699:#Confusion at noon and midnight 1669:The New Encyclopædia Britannica 1441:(a.m.) means before midday and 573:12-hour alarm clock indicating 3936:History of timekeeping devices 2037:Jim Watson professor of design 1583:(12 p.m.), as opposed to 1504:The Associated Press Stylebook 1109:Confusion at noon and midnight 1099:six oh two a.m. 424: 24-hour (12-hour orally) 1: 2585:Abellio Greater Anglia London 2494:, s.v. noon, midnight, times. 1103:six thirty-two a.m. 305: 221:or shown as start of next day 90:no widely accepted convention 4369:Date and time representation 2434:The Canadian Press Stylebook 2103:American Heritage Dictionary 1533:National Physical Laboratory 1510:The Canadian Press Stylebook 1496:Many U.S. style guides, and 1093:can also be used instead of 893:influenced by German culture 722:("afternoon") respectively. 3883:Gravitational time dilation 3719:Barycentric Coordinate Time 3378:Geological history of Earth 1825:"time of day, elapsed time" 1482:E. G. Richards in his book 927:, and the languages of the 696: 683: 669: 655: 642: 628: 4390: 3739:Geocentric Coordinate Time 3724:Barycentric Dynamical Time 3662:Coordinated Universal Time 2730:Orders of magnitude (time) 2418:), very few use that form. 2368:質問4-1)正午は午前12時?それとも、午後12時? 2091:Air Force Handbook 33-337. 961: 789:The hour/minute separator 391: 36: 29: 3893:Time-translation symmetry 3780: 3704:International Atomic Time 3631: 3559: 3441:Time translation symmetry 2117:Dickens, Charles (1855). 1775:"Is noon 12 am or 12 pm?" 1585: 1579: 1573: 1567: 1561: 1559:, midnight is written as 1371: 1298: 1290: 1282: 1269: 1261: 1253: 1249:Japanese legal convention 1201:12 o'clock noon 1176:Digital watches (24-hour) 1162:Digital watches (12-hour) 1063:o'clock, half past three, 691: 677: 663: 650: 636: 622: 613: 607: 507:... in the afternoon 233: 4374:Time measurement systems 2528:Richards, E. G. (1999). 2513:(Fifth ed.). 2011. 2367: 2330: 1067:quarter to four. O'clock 791:varies between countries 430: Both in common use 4153:Astronomical chronology 4126:Archaeology and geology 3833:Absolute space and time 3749:IERS Reference Meridian 3744:International Date Line 3655:International standards 3396:Absolute space and time 3047:Astronomical chronology 2534:Oxford University Press 2400:Chicago Manual of Style 1851:"The History of Clocks" 1779:Royal Museums Greenwich 1695:(subscription required) 1463:states "By convention, 1307:Chicago Manual of Style 947:eight" clarifies this. 811:Chinese-Japanese-Korean 718:("in the morning") and 714:are used, standing for 617:, respectively, and in 511:... in the evening 503:... in the morning 3446:Time reversal symmetry 2750:Italian six-hour clock 2031:Watson, James Robert. 1620:Italian six-hour clock 1451: 1444: 1436: 1421: 1338:Associated Press style 755: 749: 578: 519:Rider's British Merlin 438: 406: 404:analogue 12-hour clock 277: 72: 60: 32:AM PM (disambiguation) 4112:Weekday determination 3998:Sundial markup schema 3211:Time and fate deities 3156:The Unreality of Time 3095:A series and B series 2613:12am is noon in Japan 2121:. p. Chapter 27. 2010:. 2018. p. 185. 2004:Economist Style Guide 1955:. Bleeping Computer. 1724:. 21 September 2016. 1467:denotes midnight and 1278:Japanese common usage 601:. The equivalents in 568: 412: 401: 272: 4133:Chronological dating 3873:Theory of relativity 3734:Daylight saving time 3462:Chronological dating 3431:Theory of relativity 2775:Daylight saving time 2068:The Tongue and Quill 1749:"Modular Arithmetic" 1148:Written 24-hour time 997:improve this section 753:(before midday) and 320:used a 12-hour clock 252:at noon and midnight 79:second millennium BC 27:Time counting system 4343:Time value of money 4138:Geologic time scale 3993:History of sundials 3858:Cosmological decade 3810:Greenwich Mean Time 3641:Orders of magnitude 2755:Thai six-hour clock 2554:. 12 January 2017. 2160:"Ask About English" 2081:on 26 November 2020 1911:A Walk Through Time 1718:"Times of Day FAQs" 1645:Thai six-hour clock 1115: 738:Related conventions 447:Republic of Ireland 374:astronomical clocks 327:24-hour analog dial 292:. Both an Egyptian 105: 4318:Mental chronometry 3946:Marine chronometer 3798:Obsolete standards 3285:Rosy retrospection 3263:Mental chronometry 3087:Philosophy of time 2192:. 21–27 May 1983. 1857:on 13 October 2008 1433:(after), the term 1113: 779:letters without a 579: 439: 407: 376:and chronometers. 278: 103: 4356: 4355: 4166:Nuclear timescale 3848:Continuous signal 3587: 3586: 3497: 3496: 3472:Circadian rhythms 3290:Tense–aspect–mood 3145:Temporal finitism 3022: 3021: 2998:Grandfather clock 2492:978-1-5416-9989-2 2409:978-0-226-28705-8 2164:BBC World Service 2006:(12th ed.). 1917:. 12 August 2009. 1831:. 22 October 2020 1413: 1412: 1244:12 midnight 1143: 1131: 1033: 1032: 1025: 661:– fore, pre) and 539:Microsoft Windows 515:... at night 262: 261: 223: 122: 16:(Redirected from 4381: 4057:Dominical letter 3988:Equation of time 3951:Marine sandglass 3792: 3786: 3764:Terrestrial Time 3621:Time measurement 3614: 3607: 3600: 3591: 3577: 3576: 3567: 3566: 3484:Glottochronology 3324: 3240:Human experience 3100:B-theory of time 2698: 2642: 2635: 2628: 2619: 2608:NIST FAQ on time 2596: 2595: 2593: 2582: 2574: 2568: 2567: 2565: 2563: 2544: 2538: 2537: 2525: 2519: 2518: 2501: 2495: 2480: 2471: 2470: 2468: 2466: 2457:. Archived from 2447: 2438: 2437: 2430: 2421: 2420: 2396: 2387: 2386: 2384: 2382: 2363: 2354: 2353: 2351: 2349: 2326: 2320: 2319: 2317: 2315: 2309: 2298: 2290: 2281: 2280: 2278: 2276: 2270: 2259: 2251: 2242: 2241: 2239: 2237: 2231: 2220: 2212: 2206: 2205: 2203: 2201: 2182: 2176: 2175: 2173: 2171: 2155: 2149: 2148: 2146: 2144: 2138:The New European 2129: 2123: 2122: 2114: 2108: 2106: 2098: 2092: 2090: 2088: 2086: 2080: 2073: 2063: 2057: 2054: 2048: 2047: 2045: 2043: 2028: 2022: 2021: 2000: 1991: 1990: 1975: 1969: 1968: 1966: 1964: 1948: 1942: 1941: 1925: 1919: 1918: 1903: 1897: 1896: 1894: 1892: 1873: 1867: 1866: 1864: 1862: 1847: 1841: 1840: 1838: 1836: 1821: 1815: 1814: 1812: 1810: 1796: 1790: 1789: 1787: 1785: 1771: 1765: 1764: 1762: 1760: 1751:. Archived from 1744: 1738: 1737: 1735: 1733: 1714: 1701: 1696: 1693: 1688: 1686: 1672: 1664: 1588: 1587: 1582: 1581: 1576: 1575: 1570: 1569: 1564: 1563: 1454: 1447: 1439: 1424: 1405: 1402: 1393: 1390: 1367:11:59 p.m. 1301: 1300: 1293: 1292: 1285: 1284: 1272: 1271: 1264: 1263: 1256: 1255: 1236:12 midnight 1208:12:00 p.m. 1141: 1129: 1116: 1028: 1021: 1017: 1014: 1008: 977: 969: 897:Slavic languages 889:American Midwest 848: 845: 842: 840: 831: 828: 825: 823: 774: 770: 758: 752: 701: 694: 693: 688: 680: 679: 674: 666: 665: 660: 653: 652: 647: 639: 638: 633: 625: 624: 616: 615: 610: 609: 545:systems such as 533:Computer support 459:excluding Quebec 435: 429: 423: 417: 382:24-hour notation 349:but showed both 343:numbering scheme 310: 307: 254: 246: 217: 191: 144: 124:12 midnight 120: 106: 75: 63: 21: 4389: 4388: 4384: 4383: 4382: 4380: 4379: 4378: 4359: 4358: 4357: 4352: 4289: 4180: 4147: 4121: 4002: 3902: 3853:Coordinate time 3825:Time in physics 3819: 3793: 3787: 3778: 3650: 3627: 3618: 3588: 3583: 3555: 3546:Time immemorial 3493: 3450: 3411:Coordinate time 3382: 3336:Geological time 3312: 3295:Time management 3258:Generation time 3242: 3234: 3179: 3161: 3081: 3040: 3018: 2906: 2824: 2741: 2734: 2690: 2682: 2651: 2646: 2604: 2599: 2594:on 26 May 2015. 2591: 2580: 2576: 2575: 2571: 2561: 2559: 2546: 2545: 2541: 2527: 2526: 2522: 2503: 2502: 2498: 2481: 2474: 2464: 2462: 2461:on 3 March 2015 2449: 2448: 2441: 2432: 2431: 2424: 2410: 2398: 2397: 2390: 2380: 2378: 2369: 2365: 2364: 2357: 2347: 2345: 2332: 2328: 2327: 2323: 2313: 2311: 2307: 2296: 2292: 2291: 2284: 2274: 2272: 2268: 2257: 2253: 2252: 2245: 2235: 2233: 2229: 2218: 2214: 2213: 2209: 2199: 2197: 2184: 2183: 2179: 2169: 2167: 2158:Swan, Michael. 2157: 2156: 2152: 2142: 2140: 2131: 2130: 2126: 2116: 2115: 2111: 2100: 2099: 2095: 2084: 2082: 2078: 2071: 2065: 2064: 2060: 2055: 2051: 2041: 2039: 2030: 2029: 2025: 2018: 2002: 2001: 1994: 1977: 1976: 1972: 1962: 1960: 1950: 1949: 1945: 1927: 1926: 1922: 1905: 1904: 1900: 1890: 1888: 1875: 1874: 1870: 1860: 1858: 1849: 1848: 1844: 1834: 1832: 1823: 1822: 1818: 1808: 1806: 1798: 1797: 1793: 1783: 1781: 1773: 1772: 1768: 1758: 1756: 1746: 1745: 1741: 1731: 1729: 1716: 1715: 1704: 1694: 1684: 1682: 1674: 1673: 1666: 1665: 1658: 1654: 1649: 1595: 1531:In the UK, the 1409: 1408: 1403: 1396: 1391: 1376: 1366: 1359:12:01 a.m. 1358: 1313: 1302:(12 p.m.) 1273:(12 p.m.) 1265:(12 a.m.) 1240: 1235: 1225: 1220: 1207: 1202: 1200: 1140: 1128: 1111: 1029: 1018: 1012: 1009: 994: 978: 967: 960: 855: 846: 843: 835: 834: 829: 826: 818: 817: 807: 772: 768: 745: 740: 563: 535: 437: 433: 431: 427: 425: 421: 419: 415: 396: 390: 339:Northern Europe 308: 267: 265:History and use 258: 257: 251: 247: 238: 219: 208:11:59 p.m. 200:11:00 p.m. 189: 181:12:01 p.m. 173:12:00 p.m. 172: 170: 161:11:59 a.m. 153:11:00 a.m. 142: 134:12:01 a.m. 126:12:00 a.m. 125: 123: 42: 35: 28: 23: 22: 15: 12: 11: 5: 4387: 4385: 4377: 4376: 4371: 4361: 4360: 4354: 4353: 4351: 4350: 4345: 4340: 4338:Time metrology 4335: 4330: 4325: 4320: 4315: 4314: 4313: 4303: 4297: 4295: 4294:Related topics 4291: 4290: 4288: 4287: 4282: 4277: 4272: 4267: 4262: 4257: 4252: 4247: 4242: 4237: 4232: 4227: 4222: 4217: 4212: 4207: 4202: 4197: 4191: 4189: 4182: 4181: 4179: 4178: 4173: 4168: 4163: 4157: 4155: 4149: 4148: 4146: 4145: 4140: 4135: 4129: 4127: 4123: 4122: 4120: 4119: 4114: 4109: 4104: 4099: 4094: 4089: 4084: 4079: 4074: 4069: 4064: 4059: 4054: 4049: 4044: 4039: 4033: 4028: 4023: 4018: 4012: 4010: 4004: 4003: 4001: 4000: 3995: 3990: 3985: 3983:Dialing scales 3980: 3975: 3970: 3969: 3968: 3958: 3953: 3948: 3943: 3938: 3933: 3928: 3923: 3918: 3912: 3910: 3904: 3903: 3901: 3900: 3895: 3890: 3885: 3880: 3875: 3870: 3865: 3860: 3855: 3850: 3845: 3840: 3835: 3829: 3827: 3821: 3820: 3818: 3817: 3815:Prime meridian 3812: 3807: 3805:Ephemeris time 3801: 3799: 3795: 3794: 3781: 3779: 3777: 3776: 3774:180th meridian 3771: 3766: 3761: 3756: 3751: 3746: 3741: 3736: 3731: 3726: 3721: 3716: 3711: 3706: 3701: 3696: 3691: 3686: 3681: 3676: 3671: 3670: 3669: 3658: 3656: 3652: 3651: 3649: 3648: 3643: 3638: 3632: 3629: 3628: 3619: 3617: 3616: 3609: 3602: 3594: 3585: 3584: 3582: 3581: 3571: 3560: 3557: 3556: 3554: 3553: 3548: 3543: 3538: 3531: 3526: 3521: 3516: 3511: 3505: 3503: 3499: 3498: 3495: 3494: 3492: 3491: 3489:Time geography 3486: 3481: 3479:Clock reaction 3476: 3475: 3474: 3464: 3458: 3456: 3452: 3451: 3449: 3448: 3443: 3438: 3433: 3428: 3423: 3418: 3413: 3408: 3403: 3398: 3392: 3390: 3384: 3383: 3381: 3380: 3375: 3370: 3369: 3368: 3363: 3358: 3353: 3348: 3343: 3332: 3330: 3321: 3314: 3313: 3311: 3310: 3297: 3292: 3287: 3282: 3281: 3280: 3278:time signature 3275: 3265: 3260: 3255: 3249: 3247: 3236: 3235: 3233: 3232: 3231: 3230: 3220: 3219: 3218: 3208: 3203: 3198: 3193: 3188: 3182: 3180: 3178: 3177: 3172: 3166: 3163: 3162: 3160: 3159: 3152: 3150:Temporal parts 3147: 3142: 3137: 3132: 3127: 3122: 3120:Eternal return 3117: 3112: 3107: 3105:Chronocentrism 3102: 3097: 3091: 3089: 3083: 3082: 3080: 3079: 3074: 3069: 3064: 3059: 3054: 3049: 3043: 3041: 3039: 3038: 3033: 3027: 3024: 3023: 3020: 3019: 3017: 3016: 3015: 3014: 3000: 2995: 2990: 2985: 2984: 2983: 2978: 2977: 2976: 2971: 2961: 2956: 2951: 2946: 2945: 2944: 2934: 2933: 2932: 2916: 2914: 2908: 2907: 2905: 2904: 2897: 2892: 2890:Hindu Panchang 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2856: 2855: 2850: 2845: 2834: 2832: 2826: 2825: 2823: 2822: 2817: 2812: 2807: 2802: 2797: 2792: 2787: 2782: 2777: 2772: 2767: 2762: 2757: 2752: 2746: 2744: 2736: 2735: 2733: 2732: 2727: 2722: 2717: 2712: 2706: 2704: 2695: 2684: 2683: 2681: 2680: 2675: 2670: 2665: 2659: 2657: 2653: 2652: 2647: 2645: 2644: 2637: 2630: 2622: 2616: 2615: 2610: 2603: 2602:External links 2600: 2598: 2597: 2569: 2539: 2536:. p. 289. 2520: 2496: 2472: 2439: 2422: 2408: 2388: 2355: 2344:on 6 June 2017 2321: 2282: 2243: 2207: 2177: 2150: 2124: 2109: 2093: 2058: 2049: 2023: 2016: 1992: 1985:(in Spanish). 1970: 1943: 1920: 1907:"Early Clocks" 1898: 1881:members.aon.at 1868: 1842: 1816: 1791: 1766: 1755:on 4 July 2008 1739: 1702: 1655: 1653: 1650: 1648: 1647: 1642: 1637: 1632: 1627: 1622: 1617: 1612: 1607: 1605:Clock position 1602: 1596: 1594: 1591: 1557:Japanese usage 1411: 1410: 1407: 1406: 1394: 1373: 1372: 1369: 1368: 1363: 1360: 1355: 1349: 1348: 1345: 1342: 1339: 1335: 1334: 1331: 1328: 1325: 1322:Canadian Press 1318: 1317: 1315: 1310: 1308: 1304: 1303: 1295: 1294:(0 p.m.) 1287: 1286:(0 a.m.) 1279: 1275: 1274: 1266: 1258: 1257:(0 a.m.) 1250: 1246: 1245: 1242: 1237: 1232: 1228: 1227: 1222: 1217: 1214: 1210: 1209: 1204: 1197: 1194: 1187: 1186: 1183: 1180: 1177: 1173: 1172: 1171:12:00 AM 1169: 1166: 1163: 1159: 1158: 1155: 1152: 1149: 1145: 1144: 1137: 1132: 1123: 1110: 1107: 1031: 1030: 981: 979: 972: 959: 956: 901:Serbo-Croatian 854: 851: 850: 849: 832: 806: 803: 765:small capitals 744: 741: 739: 736: 585:abbreviations 562: 559: 534: 531: 443:United Kingdom 432: 426: 420: 414: 392:Main article: 389: 388:Use by country 386: 347:Roman numerals 309: 1500 BC 266: 263: 260: 259: 256: 255: 235: 234: 231: 230: 224: 213: 212: 209: 205: 204: 201: 197: 196: 193: 192:1:00 p.m. 186: 185: 182: 178: 177: 174: 166: 165: 162: 158: 157: 154: 150: 149: 146: 145:1:00 a.m. 139: 138: 135: 131: 130: 127: 121:(start of day) 116: 115: 110: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 4386: 4375: 4372: 4370: 4367: 4366: 4364: 4349: 4346: 4344: 4341: 4339: 4336: 4334: 4331: 4329: 4326: 4324: 4321: 4319: 4316: 4312: 4309: 4308: 4307: 4304: 4302: 4299: 4298: 4296: 4292: 4286: 4283: 4281: 4278: 4276: 4273: 4271: 4268: 4266: 4263: 4261: 4258: 4256: 4253: 4251: 4248: 4246: 4243: 4241: 4238: 4236: 4233: 4231: 4228: 4226: 4223: 4221: 4218: 4216: 4213: 4211: 4208: 4206: 4203: 4201: 4198: 4196: 4193: 4192: 4190: 4188: 4187:units of time 4183: 4177: 4176:Sidereal time 4174: 4172: 4169: 4167: 4164: 4162: 4161:Galactic year 4159: 4158: 4156: 4154: 4150: 4144: 4141: 4139: 4136: 4134: 4131: 4130: 4128: 4124: 4118: 4117:Weekday names 4115: 4113: 4110: 4108: 4107:Tropical year 4105: 4103: 4100: 4098: 4095: 4093: 4090: 4088: 4085: 4083: 4080: 4078: 4075: 4073: 4072:Intercalation 4070: 4068: 4065: 4063: 4060: 4058: 4055: 4053: 4050: 4048: 4045: 4043: 4040: 4038:(lunar Hijri) 4037: 4034: 4032: 4029: 4027: 4024: 4022: 4019: 4017: 4014: 4013: 4011: 4009: 4005: 3999: 3996: 3994: 3991: 3989: 3986: 3984: 3981: 3979: 3976: 3974: 3971: 3967: 3964: 3963: 3962: 3959: 3957: 3954: 3952: 3949: 3947: 3944: 3942: 3939: 3937: 3934: 3932: 3929: 3927: 3924: 3922: 3919: 3917: 3914: 3913: 3911: 3909: 3905: 3899: 3896: 3894: 3891: 3889: 3886: 3884: 3881: 3879: 3878:Time dilation 3876: 3874: 3871: 3869: 3866: 3864: 3861: 3859: 3856: 3854: 3851: 3849: 3846: 3844: 3841: 3839: 3836: 3834: 3831: 3830: 3828: 3826: 3822: 3816: 3813: 3811: 3808: 3806: 3803: 3802: 3800: 3796: 3791: 3785: 3775: 3772: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3752: 3750: 3747: 3745: 3742: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3720: 3717: 3715: 3714:24-hour clock 3712: 3710: 3709:12-hour clock 3707: 3705: 3702: 3700: 3697: 3695: 3692: 3690: 3687: 3685: 3682: 3680: 3677: 3675: 3672: 3668: 3665: 3664: 3663: 3660: 3659: 3657: 3653: 3647: 3644: 3642: 3639: 3637: 3634: 3633: 3630: 3626: 3622: 3615: 3610: 3608: 3603: 3601: 3596: 3595: 3592: 3580: 3572: 3570: 3562: 3561: 3558: 3552: 3549: 3547: 3544: 3542: 3539: 3537: 3536: 3532: 3530: 3527: 3525: 3522: 3520: 3517: 3515: 3512: 3510: 3507: 3506: 3504: 3500: 3490: 3487: 3485: 3482: 3480: 3477: 3473: 3470: 3469: 3468: 3467:Chronobiology 3465: 3463: 3460: 3459: 3457: 3453: 3447: 3444: 3442: 3439: 3437: 3434: 3432: 3429: 3427: 3424: 3422: 3419: 3417: 3414: 3412: 3409: 3407: 3404: 3402: 3401:Arrow of time 3399: 3397: 3394: 3393: 3391: 3389: 3385: 3379: 3376: 3374: 3373:Geochronology 3371: 3367: 3364: 3362: 3359: 3357: 3354: 3352: 3349: 3347: 3344: 3342: 3339: 3338: 3337: 3334: 3333: 3331: 3329: 3325: 3322: 3320: 3315: 3309: 3305: 3301: 3298: 3296: 3293: 3291: 3288: 3286: 3283: 3279: 3276: 3274: 3271: 3270: 3269: 3266: 3264: 3261: 3259: 3256: 3254: 3251: 3250: 3248: 3246: 3241: 3237: 3229: 3226: 3225: 3224: 3223:Wheel of time 3221: 3217: 3214: 3213: 3212: 3209: 3207: 3204: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3183: 3181: 3176: 3173: 3171: 3168: 3167: 3164: 3158: 3157: 3153: 3151: 3148: 3146: 3143: 3141: 3138: 3136: 3133: 3131: 3128: 3126: 3123: 3121: 3118: 3116: 3113: 3111: 3108: 3106: 3103: 3101: 3098: 3096: 3093: 3092: 3090: 3088: 3084: 3078: 3075: 3073: 3070: 3068: 3067:Periodization 3065: 3063: 3060: 3058: 3055: 3053: 3050: 3048: 3045: 3044: 3042: 3037: 3034: 3032: 3029: 3028: 3025: 3013: 3012: 3008: 3007: 3006: 3005: 3001: 2999: 2996: 2994: 2993:Digital clock 2991: 2989: 2986: 2982: 2979: 2975: 2972: 2970: 2967: 2966: 2965: 2962: 2960: 2957: 2955: 2952: 2950: 2947: 2943: 2940: 2939: 2938: 2935: 2931: 2928: 2927: 2926: 2923: 2922: 2921: 2918: 2917: 2915: 2913: 2909: 2903: 2902: 2898: 2896: 2893: 2891: 2888: 2886: 2883: 2881: 2878: 2876: 2873: 2871: 2868: 2866: 2863: 2861: 2858: 2854: 2851: 2849: 2846: 2844: 2841: 2840: 2839: 2836: 2835: 2833: 2831: 2827: 2821: 2818: 2816: 2813: 2811: 2808: 2806: 2803: 2801: 2798: 2796: 2793: 2791: 2788: 2786: 2783: 2781: 2778: 2776: 2773: 2771: 2770:Relative hour 2768: 2766: 2765:24-hour clock 2763: 2761: 2760:12-hour clock 2758: 2756: 2753: 2751: 2748: 2747: 2745: 2743: 2737: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2707: 2705: 2703: 2699: 2696: 2694: 2689: 2685: 2679: 2676: 2674: 2671: 2669: 2666: 2664: 2661: 2660: 2658: 2654: 2650: 2643: 2638: 2636: 2631: 2629: 2624: 2623: 2620: 2614: 2611: 2609: 2606: 2605: 2601: 2590: 2586: 2579: 2573: 2570: 2557: 2553: 2549: 2543: 2540: 2535: 2531: 2524: 2521: 2516: 2512: 2511: 2506: 2500: 2497: 2493: 2489: 2485: 2479: 2477: 2473: 2460: 2456: 2454: 2446: 2444: 2440: 2435: 2429: 2427: 2423: 2419: 2417: 2411: 2405: 2401: 2395: 2393: 2389: 2377:(in Japanese) 2376: 2375: 2370: 2362: 2360: 2356: 2343: 2339: 2338: 2333: 2325: 2322: 2306: 2302: 2295: 2289: 2287: 2283: 2267: 2263: 2256: 2250: 2248: 2244: 2228: 2224: 2217: 2211: 2208: 2195: 2191: 2187: 2181: 2178: 2165: 2161: 2154: 2151: 2139: 2135: 2128: 2125: 2120: 2119:Little Dorrit 2113: 2110: 2104: 2097: 2094: 2077: 2070: 2069: 2062: 2059: 2053: 2050: 2038: 2034: 2027: 2024: 2019: 2017:9781781258316 2013: 2009: 2008:The Economist 2005: 1999: 1997: 1993: 1988: 1984: 1980: 1974: 1971: 1958: 1954: 1947: 1944: 1939: 1935: 1934: 1931: 1924: 1921: 1916: 1912: 1908: 1902: 1899: 1886: 1882: 1878: 1872: 1869: 1856: 1852: 1846: 1843: 1830: 1826: 1820: 1817: 1805: 1801: 1795: 1792: 1780: 1776: 1770: 1767: 1754: 1750: 1743: 1740: 1727: 1723: 1719: 1713: 1711: 1709: 1707: 1703: 1700: 1692: 1681: 1677: 1670: 1663: 1661: 1657: 1651: 1646: 1643: 1641: 1638: 1636: 1633: 1631: 1628: 1626: 1623: 1621: 1618: 1616: 1613: 1611: 1608: 1606: 1603: 1601: 1600:24-hour clock 1598: 1597: 1592: 1590: 1558: 1553: 1550: 1546: 1542: 1536: 1534: 1529: 1527: 1523: 1519: 1515: 1512:says, "write 1511: 1507: 1505: 1501: 1499: 1494: 1492: 1487: 1485: 1480: 1478: 1474: 1470: 1466: 1462: 1461: 1456: 1453: 1448: 1446: 1445:post meridiem 1440: 1438: 1437:ante meridiem 1432: 1429:(before) and 1428: 1423: 1418: 1401: 1399: 1395: 1389: 1387: 1385: 1383: 1381: 1379: 1375: 1370: 1364: 1361: 1356: 1354: 1351: 1350: 1346: 1343: 1340: 1337: 1336: 1332: 1329: 1326: 1324:, UK standard 1323: 1320: 1319: 1316: 1314:12:00 m. 1311: 1309: 1306: 1305: 1296: 1288: 1280: 1277: 1276: 1267: 1259: 1251: 1248: 1247: 1243: 1238: 1233: 1230: 1229: 1223: 1218: 1215: 1212: 1211: 1205: 1198: 1195: 1192: 1189: 1188: 1184: 1181: 1178: 1175: 1174: 1170: 1168:12:00 PM 1167: 1165:12:00 AM 1164: 1161: 1160: 1156: 1153: 1150: 1147: 1146: 1138: 1136: 1133: 1127: 1124: 1122: 1118: 1117: 1108: 1106: 1104: 1100: 1096: 1092: 1088: 1084: 1080: 1076: 1072: 1068: 1064: 1060: 1056: 1052: 1048: 1044: 1043: 1037: 1027: 1024: 1016: 1006: 1002: 998: 992: 991: 987: 982:This section 980: 976: 971: 970: 965: 957: 955: 953: 948: 946: 943:seven-thirty 942: 936: 932: 930: 929:Baltic States 926: 922: 919:, as well as 918: 914: 910: 906: 902: 898: 894: 890: 885: 881: 879: 875: 870: 868: 864: 860: 852: 838: 833: 821: 816: 815: 814: 812: 804: 802: 800: 799:24-hour clock 796: 795:military time 792: 787: 784: 782: 778: 766: 762: 757: 756:post meridiem 751: 750:ante meridiem 742: 737: 735: 733: 727: 723: 721: 717: 713: 709: 705: 700: 699: 687: 686: 673: 672: 659: 658: 646: 645: 632: 631: 620: 604: 600: 596: 592: 588: 584: 576: 572: 567: 561:Abbreviations 560: 558: 556: 552: 548: 544: 540: 532: 530: 528: 524: 520: 516: 512: 508: 504: 499: 496: 495:24-hour clock 492: 488: 484: 480: 476: 472: 468: 464: 460: 456: 452: 451:United States 448: 444: 436: 12-hour 418: 24-hour 411: 405: 400: 395: 387: 385: 383: 377: 375: 369: 366: 364: 360: 356: 352: 348: 344: 340: 336: 332: 328: 323: 321: 317: 312: 303: 299: 295: 291: 290:ancient Egypt 287: 282: 275: 271: 264: 253: 245: 243: 241: 237: 232: 229: 225: 222: 215: 214: 210: 207: 206: 202: 199: 198: 194: 188: 187: 183: 180: 179: 175: 168: 167: 163: 160: 159: 155: 152: 151: 147: 141: 140: 136: 133: 132: 128: 118: 117: 114: 111: 108: 107: 104:Clock system 101: 99: 95: 91: 87: 82: 80: 76: 74: 73:post meridiem 68: 64: 62: 61:ante meridiem 57: 53: 49: 48:12-hour clock 44: 40: 33: 19: 18:12 hour clock 4323:Decimal time 4052:Astronomical 3931:Complication 3926:Atomic clock 3708: 3541:Time capsule 3535:Tempus fugit 3533: 3455:Other fields 3154: 3135:Perdurantism 3057:Calendar era 3009: 3002: 2988:Cuckoo clock 2925:astronomical 2899: 2759: 2725:Unit of time 2656:Key concepts 2589:the original 2584: 2572: 2560:. Retrieved 2551: 2542: 2529: 2523: 2508: 2499: 2483: 2463:. Retrieved 2459:the original 2452: 2433: 2415: 2413: 2399: 2379:. Retrieved 2372: 2346:. Retrieved 2342:the original 2335: 2331:午前12時? 午後0時? 2324: 2312:. Retrieved 2300: 2273:. Retrieved 2261: 2234:. Retrieved 2222: 2210: 2198:. Retrieved 2189: 2180: 2168:. Retrieved 2163: 2153: 2141:. Retrieved 2137: 2127: 2118: 2112: 2102: 2096: 2083:. Retrieved 2076:the original 2067: 2061: 2052: 2040:. Retrieved 2036: 2026: 2003: 1982: 1973: 1961:. Retrieved 1946: 1933: 1929: 1923: 1910: 1901: 1889:. Retrieved 1880: 1871: 1859:. Retrieved 1855:the original 1845: 1833:. Retrieved 1828: 1819: 1807:. Retrieved 1803: 1794: 1782:. Retrieved 1778: 1769: 1757:. Retrieved 1753:the original 1742: 1732:30 September 1730:. Retrieved 1690: 1683:. Retrieved 1679: 1668: 1615:Decimal time 1554: 1537: 1530: 1525: 1521: 1517: 1513: 1509: 1508: 1503: 1502: 1495: 1488: 1484:Mapping Time 1483: 1481: 1476: 1472: 1468: 1464: 1458: 1457: 1442: 1434: 1430: 1426: 1414: 1241:12 noon 1239:12 p.m. 1234:12 a.m. 1224:12 p.m. 1219:12 a.m. 1130:Start of day 1102: 1098: 1094: 1090: 1086: 1082: 1078: 1074: 1070: 1066: 1062: 1058: 1054: 1050: 1046: 1041: 1038: 1034: 1019: 1013:October 2020 1010: 995:Please help 983: 951: 949: 944: 940: 937: 933: 899:, including 886: 882: 877: 874:quarter hour 873: 871: 866: 862: 858: 856: 808: 788: 785: 746: 732:social dance 728: 724: 719: 715: 711: 707: 697: 684: 670: 656: 643: 629: 590: 586: 580: 574: 536: 526: 522: 518: 514: 510: 506: 502: 500: 471:South Africa 440: 378: 370: 367: 354: 350: 324: 313: 304:. Dating to 283: 279: 227: 220: 218:(end of day) 171:12 noon 83: 70: 69:(from Latin 66: 58: 51: 47: 45: 43: 39:antimeridian 4333:System time 4328:Metric time 4047:Solar Hijri 3973:Water clock 3956:Radio clock 3888:Time domain 3868:Proper time 3754:Leap second 3636:Chronometry 3551:Time travel 3529:System time 3436:Time domain 3421:Proper time 3245:use of time 3216:Father Time 3196:Immortality 3186:Ages of Man 3115:Endurantism 3072:Regnal year 3052:Big History 2981:water-based 2880:Solar Hijri 2790:Hexadecimal 2740:Measurement 2702:Chronometry 2688:Measurement 2552:govinfo.gov 2314:5 September 2275:5 September 2236:5 September 2101:"quarter". 1861:12 November 1804:govinfo.gov 1759:28 November 1685:20 November 1526:12 midnight 1477:12 midnight 1051:two o'clock 1047:ten o'clock 761:style guide 491:Philippines 467:New Zealand 302:Amenhotep I 298:water clock 286:Mesopotamia 4363:Categories 4348:Timekeeper 4301:Chronology 4285:Millennium 4171:Precession 4077:Julian day 3898:T-symmetry 3759:Solar time 3729:Civil time 3253:Chronemics 3228:Kalachakra 3140:Presentism 3125:Eternalism 3031:Chronology 2969:mechanical 2920:Main types 2838:Main types 2465:11 January 2381:19 January 2170:13 January 2143:13 October 2085:26 October 1963:26 October 1835:27 January 1809:27 January 1784:26 January 1652:References 1469:12 PM 1465:12 AM 1425:(midday), 1203:12 m. 1142:End of day 1119:Device or 1049:, 2:00 as 1045:(10:00 as 797:", of the 743:Typography 483:Bangladesh 250:§Confusion 4245:Fortnight 4092:Lunisolar 4082:Leap year 4016:Gregorian 3966:stopwatch 3941:Hourglass 3921:Astrarium 3838:Spacetime 3769:Time zone 3646:Metrology 3625:standards 3509:Leap year 3426:Spacetime 3300:Yesterday 3201:Dreamtime 3175:Mythology 3062:Deep time 2974:stopwatch 2949:hourglass 2930:astrarium 2860:Gregorian 2853:Lunisolar 2830:Calendars 2820:Time zone 2693:standards 2200:8 October 2042:30 August 1347:midnight 1333:Midnight 1226:midnight 1075:four p.m. 1071:four a.m. 984:does not 921:Hungarian 878:half hour 847:SQUARE PM 830:SQUARE AM 777:uppercase 716:ar maidin 543:Unix-like 463:Australia 331:astrolabe 216:Midnight 119:Midnight 4306:Duration 4280:Saeculum 4260:Olympiad 4102:Solstice 4031:Holocene 4008:Calendar 3908:Horology 3699:ISO 8601 3694:ISO 31-1 3569:Category 3317:Time in 3308:Tomorrow 3170:Religion 3110:Duration 3077:Timeline 3011:Timeline 2810:Sidereal 2678:Eternity 2562:16 March 2556:Archived 2515:Archived 2453:FAQ-Time 2416:meridies 2305:Archived 2266:Archived 2227:Archived 2194:Archived 1987:Archived 1957:Archived 1938:Archived 1885:Archived 1726:Archived 1667:"Time". 1625:Midnight 1593:See also 1541:airplane 1518:midnight 1452:meridies 1422:meridies 1365:midnight 1357:midnight 1327:Midnight 1216:midnight 1206:midnight 1196:midnight 1139:Midnight 1126:Midnight 1059:at night 863:to, 'til 844:㏘ 827:㏂ 805:Encoding 644:peravaru 569:Typical 479:Pakistan 402:Typical 228:(00:00) 98:midnight 92:for how 86:colonies 4275:Century 4265:Lustrum 4195:Instant 4067:Equinox 4036:Islamic 3978:Sundial 3843:Chronon 3579:Commons 3502:Related 3416:Instant 3406:Chronon 3388:Physics 3328:Geology 3319:science 3191:Destiny 3036:History 3004:History 2959:sundial 2942:quantum 2885:Chinese 2875:Islamic 2785:Decimal 2780:Chinese 2742:systems 2668:Present 2301:govinfo 2262:govinfo 2223:govinfo 2190:TVTimes 1891:13 June 1630:Muhurta 1522:12 noon 1473:12 noon 1083:oh nine 1042:o'clock 1005:removed 990:sources 925:Finnish 917:Swedish 913:Russian 771:" and " 720:iarnóin 685:pasvaru 619:Sinhala 599:Spanish 595:English 571:digital 555:Windows 294:sundial 190:  143:  113:24-hour 109:12-hour 4270:Decade 4225:Moment 4220:Minute 4215:Second 4185:Other 4042:Julian 4021:Hebrew 3667:offset 3519:Moment 3514:Memory 3366:period 2954:marine 2937:atomic 2912:Clocks 2870:Hebrew 2865:Julian 2800:Metric 2673:Future 2490:  2406:  2348:24 May 2014:  1979:"hora" 1676:"Time" 1520:, not 1419:words 1193:(1953) 1157:24:00 1087:nought 1079:oh one 915:, and 909:Danish 841: 824: 781:period 678:පස්වරු 675:) for 671:pa.va. 637:පෙරවරු 634:) for 630:pe.va. 513:, and 487:Mexico 481:, and 455:Canada 449:, the 434:  428:  422:  416:  363:Exeter 316:Romans 226:24:00 211:23:59 203:23:00 195:13:00 184:12:01 176:12:00 164:11:59 156:11:00 148:01:00 137:00:01 129:00:00 94:midday 54:(from 4311:music 4250:Month 4210:Jiffy 4205:Shake 4200:Flick 4097:Solar 4087:Lunar 4062:Epact 4026:Hindu 3961:Watch 3916:Clock 3524:Space 3356:epoch 3346:chron 3304:Today 3273:tempo 3268:Music 3130:Event 2964:watch 2848:Lunar 2843:Solar 2815:Solar 2805:Roman 2795:Hindu 2592:(PDF) 2581:(PDF) 2308:(PDF) 2297:(PDF) 2269:(PDF) 2258:(PDF) 2230:(PDF) 2219:(PDF) 2166:. BBC 2079:(PDF) 2072:(PDF) 1640:Pahar 1580:午後12時 1574:午前12時 1549:train 1547:, or 1417:Latin 1299:午後12時 1270:午後12時 1262:午前12時 1185:0:00 1182:12:00 1154:12:00 1151:00:00 1121:style 964:O bag 941:about 905:Dutch 704:Irish 698:passē 692:පස්සේ 623:පෙ.ව. 603:Greek 583:Latin 551:macOS 547:Linux 475:India 359:Wells 337:. In 318:also 248:See: 56:Latin 4255:Year 4240:Week 4230:Hour 3684:DUT1 3623:and 3243:and 3206:Kāla 2901:List 2895:Maya 2691:and 2663:Past 2649:Time 2564:2018 2505:"AM" 2488:ISBN 2467:2015 2404:ISBN 2383:2022 2350:2017 2316:2019 2277:2019 2238:2019 2202:2019 2172:2021 2145:2022 2087:2021 2044:2022 2012:ISBN 1965:2013 1893:2006 1863:2017 1837:2023 1811:2023 1786:2023 1761:2008 1734:2018 1687:2013 1635:Noon 1586:午前0時 1568:午後0時 1562:午前0時 1514:noon 1498:NIST 1475:and 1431:post 1427:ante 1362:noon 1353:NIST 1344:noon 1330:Noon 1312:noon 1291:午後0時 1283:午前0時 1254:午前0時 1221:noon 1199:noon 1179:0:00 1135:Noon 1091:zero 1065:and 988:any 986:cite 865:and 859:past 839:33D8 822:33C2 775:"), 712:i.n. 710:and 708:a.m. 664:ප.ව. 657:pera 614:μ.μ. 611:and 608:π.μ. 605:are 597:and 591:p.m. 589:and 587:a.m. 581:The 575:p.m. 549:and 541:and 527:p.m. 525:and 523:a.m. 361:and 355:p.m. 353:and 351:a.m. 314:The 288:and 169:Noon 96:and 67:p.m. 52:a.m. 46:The 4235:Day 3361:era 3351:eon 3341:age 2720:TAI 2710:UTC 1555:In 1545:bus 1524:or 1516:or 1479:". 1089:or 1081:to 1073:or 1057:or 999:by 651:පෙර 461:), 345:in 4365:: 3679:ΔT 3674:UT 3306:– 3302:– 2715:UT 2583:. 2550:. 2532:. 2507:. 2475:^ 2442:^ 2425:^ 2412:. 2391:^ 2358:^ 2299:. 2285:^ 2260:. 2246:^ 2221:. 2188:. 2162:. 2136:. 2035:. 1995:^ 1981:. 1913:. 1909:. 1883:. 1879:. 1827:. 1802:. 1777:. 1720:. 1705:^ 1689:. 1678:. 1659:^ 1543:, 1397:^ 1377:^ 1105:. 1095:oh 952:to 945:or 931:. 923:, 911:, 907:, 903:, 867:of 837:U+ 820:U+ 773:pm 769:am 767:(" 706:, 689:, 648:, 517:. 477:, 473:, 469:, 465:, 453:, 445:, 365:. 306:c. 239:^ 3613:e 3606:t 3599:v 2641:e 2634:t 2627:v 2566:. 2469:. 2455:" 2385:. 2352:. 2318:. 2279:. 2240:. 2204:. 2174:. 2147:. 2089:. 2046:. 2020:. 1967:. 1895:. 1865:. 1839:. 1813:. 1788:. 1763:. 1736:. 1341:— 1085:( 1026:) 1020:( 1015:) 1011:( 1007:. 993:. 966:. 939:" 681:( 667:( 640:( 626:( 509:, 505:, 457:( 41:. 34:. 20:)

Index

12 hour clock
AM PM (disambiguation)
antimeridian
Latin
second millennium BC
colonies
no widely accepted convention
midday
midnight
24-hour



§Confusion
at noon and midnight


Exeter Cathedral Astronomical Clock
Mesopotamia
ancient Egypt
sundial
water clock
Amenhotep I
Romans
used a 12-hour clock
24-hour analog dial
astrolabe
Earth's apparent motion around the Sun
Northern Europe
numbering scheme
Roman numerals
Wells

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.