A leap year starting on Wednesday is any year with 366 days (i.e. it includes 29 February) that begins on Wednesday 1 January and ends on Thursday 31 December. Its dominical letters hence are ED. The most recent year of such kind was 2020, and the next one will be 2048 in the Gregorian calendar, or likewise, 2004 and 2032 in the obsolete Julian calendar, see below for more.
Any leap year that starts on Wednesday has two Friday the 13ths: those two in this leap year occur in March and November. Common years starting on Thursday share this characteristic, but also have another in February.
Any leap year that starts on Wednesday has only one Saturday the 13th; the only one in this leap year occurs in June. Common years starting on Thursday share this characteristic.
Leap years starting on Sunday also share a similar characteristic to this type of leap year, three Friday the 13th's have a three month gap between them, the former two being in the common year preceding this type of leap year, those being September and December, and the latter being in this type of year, that being March. Leap years starting on Sunday share this by having January, April and July three months apart from each other.
This is the only leap year with three occurrences of Friday the 17th: those three in this leap year occur three months (13 weeks) apart: in January, April, and July. Common years starting on Sunday share this characteristic, in the months of February, March, and November.
From August of the common year preceding that year until October in this type of year is also the longest period (14 months) that occurs without a Tuesday the 13th, as in 2019-20. Common years starting on Saturday share this characteristic, from July of the year that precedes it to September in that type of year, as in 2021-22.
This year has four months (February, March, August, and November) which begin on a weekend-day. Common years starting on Thursday share this characteristic.
Calendars
Calendar for any leap year starting on Wednesday, presented as common in many English-speaking areas
January
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
February
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
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 leap year starting on Wednesday (dominical letter ED)
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
29
March
Wk
Mo
Tu
We
Th
Fr
Sa
Su
09
01
10
02
03
04
05
06
07
08
11
09
10
11
12
13
14
15
12
16
17
18
19
20
21
22
13
23
24
25
26
27
28
29
14
30
31
April
Wk
Mo
Tu
We
Th
Fr
Sa
Su
14
01
02
03
04
05
15
06
07
08
09
10
11
12
16
13
14
15
16
17
18
19
17
20
21
22
23
24
25
26
18
27
28
29
30
May
Wk
Mo
Tu
We
Th
Fr
Sa
Su
18
01
02
03
19
04
05
06
07
08
09
10
20
11
12
13
14
15
16
17
21
18
19
20
21
22
23
24
22
25
26
27
28
29
30
31
June
Wk
Mo
Tu
We
Th
Fr
Sa
Su
23
01
02
03
04
05
06
07
24
08
09
10
11
12
13
14
25
15
16
17
18
19
20
21
26
22
23
24
25
26
27
28
27
29
30
July
Wk
Mo
Tu
We
Th
Fr
Sa
Su
27
01
02
03
04
05
28
06
07
08
09
10
11
12
29
13
14
15
16
17
18
19
30
20
21
22
23
24
25
26
31
27
28
29
30
31
August
Wk
Mo
Tu
We
Th
Fr
Sa
Su
31
01
02
32
03
04
05
06
07
08
09
33
10
11
12
13
14
15
16
34
17
18
19
20
21
22
23
35
24
25
26
27
28
29
30
36
31
September
Wk
Mo
Tu
We
Th
Fr
Sa
Su
36
01
02
03
04
05
06
37
07
08
09
10
11
12
13
38
14
15
16
17
18
19
20
39
21
22
23
24
25
26
27
40
28
29
30
October
Wk
Mo
Tu
We
Th
Fr
Sa
Su
40
01
02
03
04
41
05
06
07
08
09
10
11
42
12
13
14
15
16
17
18
43
19
20
21
22
23
24
25
44
26
27
28
29
30
31
November
Wk
Mo
Tu
We
Th
Fr
Sa
Su
44
01
45
02
03
04
05
06
07
08
46
09
10
11
12
13
14
15
47
16
17
18
19
20
21
22
48
23
24
25
26
27
28
29
49
30
December
Wk
Mo
Tu
We
Th
Fr
Sa
Su
49
01
02
03
04
05
06
50
07
08
09
10
11
12
13
51
14
15
16
17
18
19
20
52
21
22
23
24
25
26
27
53
28
29
30
31
Applicable years
Gregorian Calendar
Leap years that begin on Wednesday, along with those starting on Tuesday, occur at a rate of approximately 14.43% (14 out of 97) of all total leap years in a 400-year cycle of the Gregorian calendar. Thus, their overall occurrence is 3.5% (14 out of 400).
For this kind of year, the corresponding ISO year has 53 weeks.
Gregorian leap years starting on Wednesday
Decade
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
16th century
prior to first adoption (proleptic)
1592
17th century
1620
1648
1676
18th century
1716
1744
1772
19th century
1812
1840
1868
1896
20th century
1908
1936
1964
1992
21st century
2020
2048
2076
22nd century
2116
2144
2172
23rd century
2212
2240
2268
2296
24th century
2308
2336
2364
2392
25th century
2420
2448
2476
26th century
2516
2544
2572
27th century
2612
2640
2668
2696
400-year cycle
0–99
20
48
76
100–199
116
144
172
200–299
212
240
268
296
300–399
308
336
364
392
Julian Calendar
Like all leap year types, the one starting with 1 January on a Wednesday occurs exactly once in a 28-year cycle in the Julian calendar, i.e. in 3.57% of years. 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).
Julian leap years starting on Wednesday
Decade
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
15th century
1416
1444
1472
1500
16th century
1528
1556
1584
17th century
1612
1640
1668
1696
18th century
1724
1752
1780
19th century
1808
1836
1864
1892
20th century
1920
1948
1976
21st century
2004
2032
2060
2088
22nd century
2116
2144
2172
2200
Wikimedia Commons has media related to Leap years starting on Wednesday and ending on Thursday.
Holidays
International
Valentine's Day falls on a Friday
The leap day (February 29) falls on a Saturday
World Day for Grandparents and the Elderly falls on July 26
The Feast of Christ the King falls on November 22 (or on its earliest possible date of October 25 in versions of the calendar between 1925 and 1962)
The First Sunday of Advent falls on November 29
The Immaculate Conception falls on a Tuesday
Gaudete Sunday falls on December 13
Rorate Sunday falls on December 20
Australia and New Zealand
Australia Day falls on a Sunday
Waitangi Day falls on a Thursday
Daylight saving ends on April 5
ANZAC Day falls on a Saturday
Mother's Day falls on May 10
Father's Day falls on September 6
Daylight saving begins on September 27 in New Zealand and October 4 in Australia
British Isles
Saint David's Day falls on a Sunday
Mother's Day falls on its earliest possible date of March 1, or on March 8, March 15, March 22 or March 29
Saint Patrick's Day falls on a Tuesday
Daylight saving begins on March 29
Saint George's Day falls on a Thursday
Father's Day falls on its latest possible date, June 21
Orangeman's Day falls on a Sunday
Daylight saving ends on its earliest possible date, October 25
Guy Fawkes Night falls on a Thursday
Saint Andrew's Day falls on a Monday
Canada
Daylight saving begins on its earliest possible date, March 8
Mother's Day falls on May 10
Victoria Day falls on its earliest possible date, May 18
Father's Day falls on its latest possible date, June 21. This is the only leap year when Victoria Day and Labour Day are 34 days apart. They are 27 days apart in all other leap years.
Canada Day falls on a Wednesday
Labour Day falls on its latest possible date, September 7 – this is the only leap year when Victoria Day and Labour Day are sixteen weeks apart (they are fifteen weeks apart in all other leap years)
Thanksgiving Day falls on October 12
Daylight saving ends on its earliest possible date, November 1 - This is the only leap year when Labour Day and the end of Daylight Saving Time are 55 days apart. They are 62 days apart in all other leap years
Denmark
Constitution Day falls on a Friday
Germany
Reunification falls on a Saturday
Italy
Liberation Day falls on a Saturday
United States
Martin Luther King Jr. Day falls on January 20
President's Day falls on February 17
Daylight saving begins on its earliest possible date, March 8
Mother's Day falls on May 10
Memorial Day falls on its earliest possible date, May 25
Juneteenth falls on a Friday
Father's Day falls on its latest possible date, June 21. This is the only leap year when Memorial Day and Father’s Day are 27 days apart. They are 20 days apart in all other leap years. This is also the only leap year when the start of Daylight Saving Time and Father’s Day are 15 weeks apart. They are 14 weeks apart in all other leap years
Independence Day falls on a Saturday
Labor Day falls on its latest possible date, September 7 – this is the only leap year when Memorial Day and Labor Day are fifteen weeks apart (they are fourteen weeks apart in all other leap years). This is the only leap year when the start of Daylight Saving Time and Labor Day are 183 days apart. They are 176 days apart in all other leap years.
Grandparents' Day falls on its latest possible date, September 13. This is the only leap year when Memorial Day and Grandparent’s Day are 111 days apart. They are 104 days apart in all other leap years. This is also the only leap year when the start of Daylight Saving Time and Grandparent’s Day are 27 weeks apart. They are 26 weeks apart in all other leap years
Columbus Day falls on October 12
Daylight saving ends on its earliest possible date, November 1. This is the only leap year when Labor Day and the end of Daylight Saving Time are 55 days apart. They are 62 days apart in all other leap years. This is also the only leap year when Father’s Day and the end of Daylight Saving Time are 19 weeks apart. They are 20 weeks apart in all other leap years. This is also the only leap year when Grandparent’s Day and the end of Daylight Saving Time are 7 weeks apart. They are 8 weeks apart in all other leap years
Election Day falls on November 3, its 2nd earliest election day, only surpassed by November 2.
Thanksgiving Day falls on November 26
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