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World Season Calendar

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The World Season Calendar (WSC) is a proposal for calendar reform by author Isaac Asimov. In this calendar, the year is divided into four seasons of 13 weeks each.

Calendar for each season
Sun Mon Tue Wed Thu Fri Sat
01 02 03 04 05 06 07
08 09 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
50 51 52 53 54 55 56
57 58 59 60 61 62 63
64 65 66 67 68 69 70
71 72 73 74 75 76 77
78 79 80 81 82 83 84
85 86 87 88 89 90 91

The seasons of the year are named A, B, C, and D; they correspond to the traditional fours astronomic seasons.

Seasons
WSC Northern hemisphere Southern hemisphere
A Winter Summer
B Spring Autumn
C Summer Winter
D Autumn Spring

December 21, which is on or near the time of the northern winter solstice on the Gregorian calendar, is called A-1 on the World Season Calendar.

Since each of the four seasons contains 91 days, there are 91 × 4 = 364 days in all four seasons. To make 365 days, an extra day called Year Day is added at the end of season D. Year Day is day D-92, and is not assigned a day of the week.

During leap year, an extra day called Leap Day is added at the end of season B. Leap Day, when it occurs, is day B-92, and is not assigned a day of the week.

Examples
Gregorian World Season
January 1 A-12
April 1 B-11
July 1 C-11
December 1 D-73
December 21 A-01

Add one day during leap year to B-11.

NotesEdit

  • Asimov, Isaac. The Tragedy of the Moon. Pages 48–58. Doubleday and Co.: 1973. ISBN 0-440-18999-3.

External linksEdit

Wikipedia-logo-en This page uses content from the English Wikipedia. The original article was at World Season Calendar. The list of authors can be seen in the page history. As with the Calendar Wikia, the text of Wikipedia is available under Creative Commons License. See Wikia:Licensing.

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