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1975 Calendar with Week Numbers

1975 has 52 ISO weeks. Week 1 runs from Monday, December 30, 1974 to Sunday, January 5, 1975. Each row below starts on Monday and shows its week number; the table lists every week with its dates.

January 1975
Wk
M
T
W
T
F
S
S
1
1
2
3
4
5
2
6
7
8
9
10
11
12
3
13
14
15
16
17
18
19
4
20
21
22
23
24
25
26
5
27
28
29
30
31
February 1975
Wk
M
T
W
T
F
S
S
5
1
2
6
3
4
5
6
7
8
9
7
10
11
12
13
14
15
16
8
17
18
19
20
21
22
23
9
24
25
26
27
28
March 1975
Wk
M
T
W
T
F
S
S
9
1
2
10
3
4
5
6
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
14
1
2
3
4
5
6
15
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
18
1
2
3
4
19
5
6
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
22
1
23
2
3
4
5
6
7
8
24
9
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 1975
Wk
M
T
W
T
F
S
S
27
1
2
3
4
5
6
28
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
31
1
2
3
32
4
5
6
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
36
1
2
3
4
5
6
7
37
8
9
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 1975
Wk
M
T
W
T
F
S
S
40
1
2
3
4
5
41
6
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
44
1
2
45
3
4
5
6
7
8
9
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 1975
Wk
M
T
W
T
F
S
S
49
1
2
3
4
5
6
7
50
8
9
10
11
12
13
14
51
15
16
17
18
19
20
21
52
22
23
24
25
26
27
28
1
29
30
31

All 52 Weeks of 1975

WeekStarts (Mon)Ends (Sun)Federal holidays
1Dec 30, 1974Jan 5, 1975New Year's Day
2Jan 6, 1975Jan 12, 1975—
3Jan 13, 1975Jan 19, 1975—
4Jan 20, 1975Jan 26, 1975MLK Day
5Jan 27, 1975Feb 2, 1975—
6Feb 3, 1975Feb 9, 1975—
7Feb 10, 1975Feb 16, 1975—
8Feb 17, 1975Feb 23, 1975Presidents' Day
9Feb 24, 1975Mar 2, 1975—
10Mar 3, 1975Mar 9, 1975—
11Mar 10, 1975Mar 16, 1975—
12Mar 17, 1975Mar 23, 1975—
13Mar 24, 1975Mar 30, 1975—
14Mar 31, 1975Apr 6, 1975—
15Apr 7, 1975Apr 13, 1975—
16Apr 14, 1975Apr 20, 1975—
17Apr 21, 1975Apr 27, 1975—
18Apr 28, 1975May 4, 1975—
19May 5, 1975May 11, 1975—
20May 12, 1975May 18, 1975—
21May 19, 1975May 25, 1975—
22May 26, 1975Jun 1, 1975Memorial Day
23Jun 2, 1975Jun 8, 1975—
24Jun 9, 1975Jun 15, 1975—
25Jun 16, 1975Jun 22, 1975—
26Jun 23, 1975Jun 29, 1975—
27Jun 30, 1975Jul 6, 1975Independence Day
28Jul 7, 1975Jul 13, 1975—
29Jul 14, 1975Jul 20, 1975—
30Jul 21, 1975Jul 27, 1975—
31Jul 28, 1975Aug 3, 1975—
32Aug 4, 1975Aug 10, 1975—
33Aug 11, 1975Aug 17, 1975—
34Aug 18, 1975Aug 24, 1975—
35Aug 25, 1975Aug 31, 1975—
36Sep 1, 1975Sep 7, 1975Labor Day
37Sep 8, 1975Sep 14, 1975—
38Sep 15, 1975Sep 21, 1975—
39Sep 22, 1975Sep 28, 1975—
40Sep 29, 1975Oct 5, 1975—
41Oct 6, 1975Oct 12, 1975—
42Oct 13, 1975Oct 19, 1975Columbus Day
43Oct 20, 1975Oct 26, 1975—
44Oct 27, 1975Nov 2, 1975—
45Nov 3, 1975Nov 9, 1975—
46Nov 10, 1975Nov 16, 1975Veterans Day
47Nov 17, 1975Nov 23, 1975—
48Nov 24, 1975Nov 30, 1975Thanksgiving
49Dec 1, 1975Dec 7, 1975—
50Dec 8, 1975Dec 14, 1975—
51Dec 15, 1975Dec 21, 1975—
52Dec 22, 1975Dec 28, 1975Christmas Day

1975 Week Numbers FAQ

How many weeks are in 1975?

1975 has 52 ISO weeks. Week 1 runs from Monday, December 30, 1974 to Sunday, January 5, 1975, and week 52 ends on Sunday, December 28, 1975.

What week number is January 1, 1975?

January 1, 1975 is a Wednesday in week 1 of 1975.

How are ISO week numbers counted?

ISO 8601 weeks start on Monday. Week 1 is the week that contains the first Thursday of the year, which is the same as the week that contains January 4. A year has 52 weeks, or 53 when it starts on a Thursday (or on a Wednesday in a leap year).

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