Changes: World Season Calendar

Latest revision as of 14:50, 22 September 2019

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 thirteen weeks each.

The seasons of the year are named A, B, C, and D; they correspond to the traditional four astronomical 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 across 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 or B-12
July 1	C-11
September 1	C-73
December 1	D-73
December 21	A-1

Dates from March 1 to June 20 occur one day later in the World Season Calendar in a leap year compared to a common year, hence April 1, which occurs on B11 in a common year, occurs on B12 in a leap year.

Notes[]

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

External links[]

World Season Calendar conversion charts

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.

Sun	Mon	Tue	Wed	Thu	Fri	Sat
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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
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85	86	87	88	89	90	91

@@ Line 1: / Line 1: @@
+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 thirteen weeks each.
-__NOTOC__
-The '''World Season Calendar''' is a proposal for [[calendar reform]] by author Isaac Asimov.<ref>Asimov, Isaac. ''The Tragedy of the Moon''.  Pages 48-58. Doubleday and Co.: 1973. ISBN 0-440-18999-3.</ref>  In this calendar, the year is divided into four seasons of 13 weeks each.  The calendar for each season always has the following form:
-{| class="wikitable" style="text-align:right"
+{| class="article-table"
+|+Season
 |-
 ! title="Sunday" | Sun
@@ Line 10: / Line 10: @@
 ! title="Thursday" | Thu
 ! title="Friday" | Fri
 ! title="Saturday" | Sat
 |-
+| 01 || 02 || 03 || 04 || 05 || 06 || 07
-| 1
-| 2
-| 3
-| 4
-| 5
-| 6
-| 7
 |-
+| 08 || 09 || 10 || 11 || 12 || 13 || 14
-| 8
-| 9
-| 10
-| 11
-| 12
-| 13
-| 14
 |-
+| 15 || 16 || 17 || 18 || 19 || 20 || 21
-| 15
-| 16
-| 17
-| 18
-| 19
-| 20
-| 21
 |-
+| 22 || 23 || 24 || 25 || 26 || 27 || 28
-| 22
-| 23
-| 24
-| 25
-| 26
-| 27
-| 28
 |-
+| 29 || 30 || 31 || 32 || 33 || 34 || 35
-| 29
-| 30
-| 31
-| 32
-| 33
-| 34
-| 35
 |-
+| 36 || 37 || 38 || 39 || 40 || 41 || 42
-| 36
-| 37
-| 38
-| 39
-| 40
-| 41
-| 42
 |-
+| 43 || 44 || 45 || 46 || 47 || 48 || 49
-| 43
-| 44
-| 45
-| 46
-| 47
-| 48
-| 49
 |-
+| 50 || 51 || 52 || 53 || 54 || 55 || 56
-| 50
-| 51
-| 52
-| 53
-| 54
-| 55
-| 56
 |-
+| 57 || 58 || 59 || 60 || 61 || 62 || 63
-| 57
-| 58
-| 59
-| 60
-| 61
-| 62
-| 63
 |-
+| 64 || 65 || 66 || 67 || 68 || 69 || 70
-| 64
-| 65
-| 66
-| 67
-| 68
-| 69
-| 70
 |-
+| 71 || 72 || 73 || 74 || 75 || 76 || 77
-| 71
-| 72
-| 73
-| 74
-| 75
-| 76
-| 77
 |-
+| 78 || 79 || 80 || 81 || 82 || 83 || 84
-| 78
-| 79
-| 80
-| 81
-| 82
-| 83
-| 84
 |-
+| 85 || 86 || 87 || 88 || 89 || 90 || 91
-| 85
-| 86
-| 87
-| 88
-| 89
-| 90
-| 91
 |}
-The seasons of the year are named A, B, C, and D; they correspond to the following seasons:
+The seasons of the year are named A, B, C, and D; they correspond to the traditional four astronomical seasons.
-{| class="wikitable" style="text-align:center"
+{| class="article-table"
+|+Seasons
-! !! Northern hemisphere !! Southern hemisphere
+|-
+! WSC !! Northern hemisphere !! Southern hemisphere
 |-
 ! A
@@ Line 137: / Line 61: @@
 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 &times; 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.
+Since each of the four seasons contains 91 days, there are 91 &times; 4 = 364 days across 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.
+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.
+{| class="article-table" style="text-align:center"
-===Examples===
+|+Examples
+|-
-{| class="wikitable" style="text-align:center"
 ! Gregorian !! World Season
 |-
 | January 1 || A-12
 |-
-| April 1 || B-11*
+|April 1
+|B-11 or B-12
 |-
 | July 1 || C-11
+|-
+|September 1
+|C-73
 |-
 | December 1 || D-73
@@ Line 157: / Line 85: @@
 |}
+Dates from March 1 to June 20 occur one day later in the World Season Calendar in a leap year compared to a common year, hence April 1, which occurs on B11 in a common year, occurs on B12 in a leap year.
-<nowiki>*</nowiki>Add one day during leap year.
-==See also==
-[[Calendar reform]]
 ==Notes==
+* Asimov, Isaac. ''The Tragedy of the Moon''. Pages 48–58. Doubleday and Co.: 1973. ISBN 0-440-18999-3.
-<div class="references-small" style="-moz-column-count:2; column-count:2;">
-<references/>
-</div>
 ==External links==
 * [http://www.davidgsimpson.com/ref/ws.pdf World Season Calendar conversion charts]
-[[Category:Calendars]]
-[[Category:Proposed calendars]]
-[[Category:Specific calendars]]
 {{Template:Wikipedia}}
+[[Category:Proposed calendars]]
+[[Category:Equal-quarter calendars]]
+[[Category:Days outside the week cycle]]
+[[Category:Week starts Sunday]]
+[[Category:4-season calendar]]
+[[Category:Fictional calendars]]
+[[Category:365+1]]
+[[Category:Perpetual calendars]]
+[[Category:Mid-of-year leap]]
+[[Category:Astronomic year start]]
+[[Category:Northern_winter_solstice_start]]

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

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

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