139:, requesting that they play for the very light of the moon itself. Feeling confident that he would win, Khonsu agreed. However, in the course of playing he lost the game several times in succession, such that Thoth ended up winning from the moon a substantial measure of its light, equal to about five days.
142:
With this in hand, Thoth then took this extra time, and gave it to Nut. In doing so this had the effect of increasing the earth’s number of days per year, allowing Nut to give birth to a succession of children; one upon each of the extra 5 days that were added to the original 360. And as for the
124:, the sky goddess, would give birth to a son who would depose him. Therefore Re cast a spell to the effect that Nut could not give birth on any day of the year, which was then itself composed of precisely 360 days. To help Nut to counter this spell, the wisdom god
143:
moon, losing its light had quite an effect upon it, for it became weaker and smaller in the sky. Being forced to hide itself periodically to recuperate; it could only show itself fully for a short period of time before having to disappear to regain its strength.
331:
875:
Standard
Securities Calculation Methods, Fixed Income Securities Formulas for Price, Yield, and Accrued Interest: Volume 1, 1993, Jan Mayle, New York, NY: Securities Industry Association,
26:
It is based on merging the three major calendar systems into one complex clock, with the 360-day year derived from the average year of the lunar and the solar: (365.2425
160:
154:
A duration is calculated as an integral number of days between startdate A and enddate B. The difference in years, months and days are usually calculated separately:
371:
336:
There are several methods commonly available which differ in the way that they handle the cases where the months are not 30 days long, i.e. how they adjust dates:
399:
If date A falls on the 30th of the month after applying the rule above, and date B falls on the 31st of the month, then date B will be changed to the 30th.
380:
If date A falls on the 30th of the month after applying the rule above, and date B falls on the 31st of the month, then date B will be changed to the 30th.
353:
349:
All months are considered to last 30 days and hence a full year has 360 days, but another source says that
February has its actual number of days.
365:
If date A falls on the 30th of a month after applying (2) above and date B falls on the 31st of a month, then date B will be changed to the 30th.
23:
is a method of measuring durations used in financial markets, in computer models, in ancient literature, and in prophetic literary genres.
929:
383:
All months are considered to last 30 days except
February which has its actual length. Any full year, however, always counts for 360 days.
833:
785:
683:
97:
463:
880:
641:
957:
390:
947:
589:
952:
386:
69:
396:
If date A falls on the 31st of a month or last day of
February, then date A will be changed to the 30th.
362:
If date A falls on the 31st of a month or last day of
February, then date A will be changed to the 30th.
487:
411:
If date B falls on the 31st of a month, then date B will be changed to the 1st of the following month.
583:
37:
A 360-day year consists of 12 months of 30 days each, so to derive such a calendar from the standard
814:
755:
326:{\displaystyle duration(A,B)=(B_{y}-A_{y})\times 360+(B_{m}-A_{m})\times 30+(B_{d}-A_{d});A\leq B}
733:
38:
904:. This bug is present in Excel versions 97 through 2007. This can be demonstrated by evaluating
76:' The Birthday Book, claim that the original Roman calendar had 304 days split into 10 months.
359:
If both date A and B fall on the last day of
February, then date B will be changed to the 30th.
876:
781:
679:
595:
442:
109:
673:
577:
446:
343:
If either date A or B falls on the 31st of the month, that date will be changed to the 30th.
699:
967:
837:
484:
454:
120:, who was god of the sun, ruled the earth. During this time, he heard of a prophecy that
918:
44:
For example, the 27th of June (Gregorian calendar) would be the 4th of July in the USA.
962:
656:
65:
61:
941:
598:, where the Old Persian calendar had 360 days with an extra month added every 6 years
549:
121:
908:; here years starting and ending on the last day in February only have 358 days.
450:
423:
408:
If date A falls on the 31st of a month, then date A will be changed to the 30th.
377:
If date A falls on the 31st of a month, then date A will be changed to the 30th.
414:
Where date B falls on the last day of
February, the actual date B will be used.
346:
Where date B falls on the last day of
February, the actual date B will be used.
725:
73:
864:
417:
All months are considered to last 30 days and hence a full year has 360 days.
402:
All months are considered to last 30 days and hence a full year has 360 days.
368:
All months are considered to last 30 days and hence a full year has 360 days.
815:"Derivatives Risk Management Software & Pricing Analytics | FINCAD"
499:
917:
OpenOffice is also not SIA-compliant, to maintain Excel compatibility see
901:
537:
592:, a calendar with twelve 30-day months and five or six appended holidays
85:
52:
Ancient calendars around the world initially used a 360-day calendar.
132:
136:
125:
780:
ISMA book “Bond
Markets: Structures and Yield Calculations”,
68:
which had 360 days, with varying length of months. However,
117:
616:
16:
Calendar used in some situations such as financial markets
661:(in French). University of Michigan. C. L. F. Panckoucke.
860:
858:
856:
854:
88:
describes a calendar with twelve months and 360 days.
163:
112:. One myth tells of how the extra 5 days were added.
100:, the equivalent of the year, the tun, was 360 days.
580:, another accounting calendar with fixed year length
34:)/2 = 719.6254/2 = 359.8127 days, rounding to 360.
704:Smithsonian National Museum of the American Indian
325:
114:
8:
919:Issue 84934 — ODFF: DAYS360 compliance
726:"Earth's Original 360-Day Year and Calendar"
906:DAYS360(DATE(2006,2,28), DATE(2007,2,28))
809:
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803:
302:
289:
264:
251:
226:
213:
162:
828:
826:
824:
420:
608:
135:and asked that he play a game known as
405:Alternative European method (30E+/360)
865:Accrual & Discounting Conventions
760:Keith Hunter, Ancient World Mysteries
658:Livre de Censorinus sur le jour natal
655:Censorinus, Jacques Mangeart (1843).
7:
891:2006 ISDA Definitions, Sec. 4.16 (f)
797:2006 ISDA Definitions, Sec. 4.16 (g)
756:"An 'Ideal' Earth Year of 360 Days?"
422:360-day calendar implementation in
14:
834:"Day Count Convention for Bonds"
788:, and ISMA’s Circular 14 of 1997
736:from the original on 2021-12-22
675:The Celestial Key to the Vedas
308:
282:
270:
244:
232:
206:
200:
188:
108:Ancient Egyptians also used a
1:
586:, standards for counting days
644:. The University of Chicago.
41:, certain days are skipped.
902:Microsoft Kb Article 916004
131:Thoth went to the moon god
984:
617:"An Original 360-Day Year"
590:French Republican Calendar
700:"Maya Calendar Converter"
548:
498:
458:
441:
340:European method (30E/360)
98:Mayan Long Count Calendar
62:Plutarch's Parallel Lives
930:OpenOffice Documentation
64:Romans initially used a
672:B.G., Sidharth (1999).
327:
145:
328:
70:Macrobius' Saturnalia
958:Settlement (finance)
584:Day count convention
161:
427:
948:Specific calendars
565:NASD and European
557:NASD and European
502:Financial Toolbox
479:NASD and European
421:
323:
39:Gregorian calendar
596:Iranian calendars
569:
568:
488:Analysis Services
443:Apache OpenOffice
356:method (30US/360)
116:A long time ago,
48:Ancient Calendars
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932:
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909:
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836:. Archived from
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578:365-day calendar
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128:devised a plan.
110:360-day calendar
21:360-day calendar
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978:
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953:Bonds (finance)
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724:
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485:SQL Server 2000
455:Microsoft Excel
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106:
94:
82:
58:
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17:
12:
11:
5:
981:
979:
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965:
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939:
934:
933:
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893:
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850:
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799:
790:
773:
747:
730:360dayyear.com
717:
691:
684:
678:. p. 86.
664:
647:
642:"Life of Numa"
632:
621:360dayyear.com
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462:NASD, but not
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93:
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15:
13:
10:
9:
6:
4:
3:
2:
980:
969:
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949:
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869:
866:
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857:
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840:on 2016-04-25
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794:
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786:1-901912-02-7
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721:
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710:September 10,
705:
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685:9780892817535
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579:
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550:Apple Numbers
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150:Financial use
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60:According to
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33:
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24:
22:
925:
913:
896:
887:
871:
842:. Retrieved
838:the original
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764:. Retrieved
759:
750:
738:. Retrieved
729:
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708:. Retrieved
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624:. Retrieved
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20:
18:
521:days360isda
466:-compliant
451:LibreOffice
424:spreadsheet
92:Mesoamerica
30:+ 354.3829
942:Categories
881:1882936019
844:2016-03-25
766:31 January
740:31 January
640:Plutarch.
626:2021-06-17
603:References
529:days360psa
426:functions
74:Censorinus
516:European
500:Mathworks
471:European
434:Function
318:≤
296:−
274:×
258:−
236:×
220:−
734:Archived
732:. 2015.
572:See also
562:YEARFRAC
538:Gnumeric
513:days360e
508:US/NASD
476:YEARFRAC
459:DAYS360
437:Variant
431:Package
86:Rig Veda
66:calendar
554:DAYS360
542:DAYS360
505:days360
492:Days360
96:In the
32:(lunar)
28:(solar)
968:Khonsu
879:
784:
762:. 2015
706:. 2015
682:
393:method
374:method
133:Khonsu
963:Thoth
524:ISDA
137:Senet
126:Thoth
104:Egypt
80:India
900:See
877:ISBN
782:ISBN
768:2019
742:2019
712:2015
680:ISBN
532:PSA
453:and
372:ISDA
354:NASD
84:The
72:and
56:Rome
19:The
464:SIA
391:PSA
387:BMA
352:US/
239:360
122:Nut
944::
853:^
823:^
802:^
758:.
728:.
702:.
619:.
449:,
445:,
277:30
118:Ra
847:.
817:.
770:.
744:.
714:.
688:.
629:.
389:/
321:B
315:A
312:;
309:)
304:d
300:A
291:d
287:B
283:(
280:+
271:)
266:m
262:A
253:m
249:B
245:(
242:+
233:)
228:y
224:A
215:y
211:B
207:(
204:=
201:)
198:B
195:,
192:A
189:(
186:n
183:o
180:i
177:t
174:a
171:r
168:u
165:d
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.