Календарь на любой год, начинающийся со среды, представленный во многих англоязычных регионах.
Январь
Вс
Пн
Вт
Мы
Чт
Пт
Сб
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
10
11
12
13
14
15
16
17
18
19
20
21 год
22
23
24
25
26 год
27
28 год
29
30
31 год
Февраль
Вс
Пн
Вт
Мы
Чт
Пт
Сб
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
March
Su
Mo
Tu
We
Th
Fr
Sa
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
April
Su
Mo
Tu
We
Th
Fr
Sa
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
May
Su
Mo
Tu
We
Th
Fr
Sa
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
June
Su
Mo
Tu
We
Th
Fr
Sa
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
July
Su
Mo
Tu
We
Th
Fr
Sa
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
August
Su
Mo
Tu
We
Th
Fr
Sa
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
September
Su
Mo
Tu
We
Th
Fr
Sa
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
October
Su
Mo
Tu
We
Th
Fr
Sa
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
November
Su
Mo
Tu
We
Th
Fr
Sa
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
December
Su
Mo
Tu
We
Th
Fr
Sa
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
ISO 8601-conformant calendar with week numbers for any common year starting on Wednesday (dominical letter E)
January
Wk
Mo
Tu
We
Th
Fr
Sa
Su
01
01
02
03
04
05
02
06
07
08
09
10
11
12
03
13
14
15
16
17
18
19
04
20
21
22
23
24
25
26
05
27
28
29
30
31
February
Wk
Mo
Tu
We
Th
Fr
Sa
Su
05
01
02
06
03
04
05
06
07
08
09
07
10
11
12
13
14
15
16
08
17
18
19
20
21
22
23
09
24
25
26
27
28
March
Wk
Mo
Tu
We
Th
Fr
Sa
Su
09
01
02
10
03
04
05
06
07
08
09
11
10
11
12
13
14
15
16
12
17
18
19
20
21
22
23
13
24
25
26
27
28
29
30
14
31
April
Wk
Mo
Tu
We
Th
Fr
Sa
Su
14
01
02
03
04
05
06
15
07
08
09
10
11
12
13
16
14
15
16
17
18
19
20
17
21
22
23
24
25
26
27
18
28
29
30
May
Wk
Mo
Tu
We
Th
Fr
Sa
Su
18
01
02
03
04
19
05
06
07
08
09
10
11
20
12
13
14
15
16
17
18
21
19
20
21
22
23
24
25
22
26
27
28
29
30
31
June
Wk
Mo
Tu
We
Th
Fr
Sa
Su
22
01
23
02
03
04
05
06
07
08
24
09
10
11
12
13
14
15
25
16
17
18
19
20
21
22
26
23
24
25
26
27
28
29
27
30
July
Wk
Mo
Tu
We
Th
Fr
Sa
Su
27
01
02
03
04
05
06
28
07
08
09
10
11
12
13
29
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
31
28
29
30
31
August
Wk
Mo
Tu
We
Th
Fr
Sa
Su
31
01
02
03
32
04
05
06
07
08
09
10
33
11
12
13
14
15
16
17
34
18
19
20
21
22
23
24
35
25
26
27
28
29
30
31
September
Wk
Mo
Tu
We
Th
Fr
Sa
Su
36
01
02
03
04
05
06
07
37
08
09
10
11
12
13
14
38
15
16
17
18
19
20
21
39
22
23
24
25
26
27
28
40
29
30
October
Wk
Mo
Tu
We
Th
Fr
Sa
Su
40
01
02
03
04
05
41
06
07
08
09
10
11
12
42
13
14
15
16
17
18
19
43
20
21
22
23
24
25
26
44
27
28
29
30
31
November
Wk
Mo
Tu
We
Th
Fr
Sa
Su
44
01
02
45
03
04
05
06
07
08
09
46
10
11
12
13
14
15
16
47
17
18
19
20
21
22
23
48
24
25
26
27
28
29
30
December
Wk
Mo
Tu
We
Th
Fr
Sa
Su
49
01
02
03
04
05
06
07
50
08
09
10
11
12
13
14
51
15
16
17
18
19
20
21
52
22
23
24
25
26
27
28
01
29
30
31
Applicable years[edit]
Gregorian Calendar[edit]
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]
Decade
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
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
Julian Calendar[edit]
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
Decade
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
15th century
1410
—
1421
1427
1438
1449
1455
1466
1477
1483
1494
16th century
1505
1511
1522
1533
1539
1550
—
1561
1567
1578
1589
1595
17th century
1606
1617
1623
1634
1645
1651
1662
1673
1679
1690
—
18th century
1701
1707
1718
1729
1735
1746
1757
1763
1774
1785
1791
19th century
1802
1813
1819
1830
—
1841
1847
1858
1869
1875
1886
1897
20th century
1903
1914
1925
1931
1942
1953
1959
1970
—
1981
1987
1998
21st century
2009
2015
2026
2037
2043
2054
2065
2071
2082
2093
2099
References[edit]
Gregorian year types per leap cycle by Dominical letter (DL)[2] and Doomsday (DD)
Year starts
Common years
Leap years
1 Jan
Count
Ratio
31 Dec
DL
DD
Count
Ratio
31 Dec
DL
DD
Count
Ratio
Sun
58
14.50 %
Sun
A
Tue
43
10.75 %
Mon
AG
Wed
15
03.75 %
Sat
56
14.00 %
Sat
B
Mon
43
10.75 %
Sun
BA
Tue
13
03.25 %
Fri
58
14.50 %
Fri
C
Sun
43
10.75 %
Sat
CB
Mon
15
03.75 %
Thu
57
14.25 %
Thu
D
Sat
44
11.00 %
Fri
DC
Sun
13
03.25 %
Wed
57
14.25 %
Wed
E
Fri
43
10.75 %
Thu
ED
Sat
14
03.50 %
Tue
58
14.50 %
Tue
F
Thu
44
11.00 %
Wed
FE
Fri
14
03.50 %
Mon
56
14.00 %
Mon
G
Wed
43
10.75 %
Tue
GF
Thu
13
03.25 %
∑
400
100.0 %
303
75.75 %
97
24.25 %
^ a bRobert van Gent (2017). "The Mathematics of the ISO 8601 Calendar". Utrecht University, Department of Mathematics. Retrieved 20 July 2017. CS1 maint: discouraged parameter (link)
^Robert van Gent (2017). "The Mathematics of the ISO 8601 Calendar". Utrecht University, Department of Mathematics. Retrieved 20 July 2017.