Common year starting on Wednesday

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A common year starting on Wednesday is any non-leap year (a year with 365 days) that begins on Wednesday, January 1, and ends on Wednesday, December 31. Its dominical letter hence is E. The current year, 2025 , is a common year starting on Wednesday in the Gregorian calendar, and the next such year will be 2031, [1] or, likewise, 2015 and 2026 in the obsolete Julian calendar, see below for more. This common year is one of the three possible common years in which a century year can begin on, and occurs in century years that yield a remainder of 200 when divided by 400. The most recent such year was 1800, and the next one will be 2200.

Contents

Any common year that starts on Wednesday has only one Friday the 13th: the only one in this common year occurs in June. Leap years starting on Tuesday share this characteristic.

Calendars

Calendar for any common year starting on Wednesday,
presented as common in many English-speaking areas
January
SuMoTuWeThFrSa
1234
567891011
12131415161718
19202122232425
262728293031 
 
February
SuMoTuWeThFrSa
1
2345678
9101112131415
16171819202122
232425262728
 
March
SuMoTuWeThFrSa
1
2345678
9101112131415
16171819202122
23242526272829
3031 
April
SuMoTuWeThFrSa
12345
6789101112
13141516171819
20212223242526
27282930 
 
May
SuMoTuWeThFrSa
123
45678910
11121314151617
18192021222324
25262728293031
 
June
SuMoTuWeThFrSa
1234567
891011121314
15161718192021
22232425262728
2930 
 
July
SuMoTuWeThFrSa
12345
6789101112
13141516171819
20212223242526
2728293031 
 
August
SuMoTuWeThFrSa
12
3456789
10111213141516
17181920212223
24252627282930
31 
September
SuMoTuWeThFrSa
123456
78910111213
14151617181920
21222324252627
282930 
 
October
SuMoTuWeThFrSa
1234
567891011
12131415161718
19202122232425
262728293031 
 
November
SuMoTuWeThFrSa
1
2345678
9101112131415
16171819202122
23242526272829
30 
December
SuMoTuWeThFrSa
123456
78910111213
14151617181920
21222324252627
28293031 
 
ISO 8601-conformant calendar with week numbers for
any common year starting on Wednesday (dominical letter E)
January
WkMoTuWeThFrSaSu
010102030405
0206070809101112
0313141516171819
0420212223242526
052728293031 
  
February
WkMoTuWeThFrSaSu
050102
0603040506070809
0710111213141516
0817181920212223
092425262728
  
March
WkMoTuWeThFrSaSu
090102
1003040506070809
1110111213141516
1217181920212223
1324252627282930
1431 
April
WkMoTuWeThFrSaSu
14010203040506
1507080910111213
1614151617181920
1721222324252627
18282930 
  
May
WkMoTuWeThFrSaSu
1801020304
1905060708091011
2012131415161718
2119202122232425
22262728293031 
  
June
WkMoTuWeThFrSaSu
2201
2302030405060708
2409101112131415
2516171819202122
2623242526272829
2730 
July
WkMoTuWeThFrSaSu
27010203040506
2807080910111213
2914151617181920
3021222324252627
3128293031 
  
August
WkMoTuWeThFrSaSu
31010203
3204050607080910
3311121314151617
3418192021222324
3525262728293031
  
September
WkMoTuWeThFrSaSu
3601020304050607
3708091011121314
3815161718192021
3922232425262728
402930 
  
October
WkMoTuWeThFrSaSu
400102030405
4106070809101112
4213141516171819
4320212223242526
442728293031 
  
November
WkMoTuWeThFrSaSu
440102
4503040506070809
4610111213141516
4717181920212223
4824252627282930
  
December
WkMoTuWeThFrSaSu
4901020304050607
5008091011121314
5115161718192021
5222232425262728
01293031 
  

Applicable years

Gregorian Calendar

In the (currently used) Gregorian calendar, alongside Sunday, Monday, Friday or Saturday, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Wednesday. The 28-year sub-cycle only spans across century years divisible by 400, e.g. 1600, 2000, and 2400.

Gregorian common years starting on Wednesday [1]
Decade1st2nd3rd4th5th6th7th8th9th10th
16th century prior to first adoption (proleptic) 1586 1597
17th century 1603 1614 1625 1631 1642 1653 1659 1670 1681 1687 1698
18th century 1710 1721 1727 1738 1749 1755 1766 1777 1783 1794 1800
19th century 1806 1817 1823 1834 1845 1851 1862 1873 1879 1890
20th century 1902 1913 1919 1930 1941 1947 1958 1969 1975 1986 1997
21st century 2003 2014 2025 2031 2042 2053 2059 2070 2081 2087 2098
22nd century 2110 2121 2127 2138 2149 2155 2166 2177 2183 2194 2200
23rd century 2206 2217 2223 2234 2245 2251 2262 2273 2279 2290
24th century 2302 2313 2319 2330 2341 2347 2358 2369 2375 2386 2397
400-year cycle
0–99314253142535970818798
100–199110121127138149155166177183194
200–299200206217223234245251262273279290
300–399302313319330341347358369375386397

Julian Calendar

In the now-obsolete Julian calendar, the fourteen types of year (seven common, seven leap) repeat in a 28-year cycle (1461 weeks). A leap year has two adjoining dominical letters (one for January and February and the other for March to December, as 29 February has no letter). This sequence occurs exactly once within a cycle, and every common letter thrice.

As the Julian calendar repeats after 28 years that means it will also repeat after 700 years, i.e. 25 cycles. The year's position in the cycle is given by the formula ((year + 8) mod 28) + 1). Years 2, 8 and 19 of the cycle are common years beginning on Wednesday. 2017 is year 10 of the cycle. Approximately 10.71% of all years are common years beginning on Wednesday.

Julian common years starting on Wednesday
Decade1st2nd3rd4th5th6th7th8th9th10th
15th century 1410 1421 1427 1438 1449 1455 1466 1477 1483 1494
16th century 1505 1511 1522 1533 1539 1550 1561 1567 1578 15891595
17th century1606161716231634164516511662167316791690
18th century17011707171817291735174617571763177417851791
19th century18021813181918301841184718581869187518861897
20th century19031914192519311942195319591970198119871998
21st century20092015202620372043205420652071208220932099

Holidays

International

Roman Catholic Solemnities

Australia and New Zealand

British Isles

Canada

United States

References

  1. 1 2 Robert van Gent (2017). "The Mathematics of the ISO 8601 Calendar". Utrecht University, Department of Mathematics. Retrieved 20 July 2017.