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1989 Calendar with Week Numbers

1989 has 52 ISO weeks. Week 1 runs from Monday, January 2, 1989 to Sunday, January 8, 1989, so January 1 still belongs to week 52 of 1988. Each row below starts on Monday and shows its week number; the table lists every week with its dates.

January 1989
Wk
M
T
W
T
F
S
S
52
1
1
2
3
4
5
6
7
8
2
9
10
11
12
13
14
15
3
16
17
18
19
20
21
22
4
23
24
25
26
27
28
29
5
30
31
February 1989
Wk
M
T
W
T
F
S
S
5
1
2
3
4
5
6
6
7
8
9
10
11
12
7
13
14
15
16
17
18
19
8
20
21
22
23
24
25
26
9
27
28
March 1989
Wk
M
T
W
T
F
S
S
9
1
2
3
4
5
10
6
7
8
9
10
11
12
11
13
14
15
16
17
18
19
12
20
21
22
23
24
25
26
13
27
28
29
30
31
April 1989
Wk
M
T
W
T
F
S
S
13
1
2
14
3
4
5
6
7
8
9
15
10
11
12
13
14
15
16
16
17
18
19
20
21
22
23
17
24
25
26
27
28
29
30
May 1989
Wk
M
T
W
T
F
S
S
18
1
2
3
4
5
6
7
19
8
9
10
11
12
13
14
20
15
16
17
18
19
20
21
21
22
23
24
25
26
27
28
22
29
30
31
June 1989
Wk
M
T
W
T
F
S
S
22
1
2
3
4
23
5
6
7
8
9
10
11
24
12
13
14
15
16
17
18
25
19
20
21
22
23
24
25
26
26
27
28
29
30
July 1989
Wk
M
T
W
T
F
S
S
26
1
2
27
3
4
5
6
7
8
9
28
10
11
12
13
14
15
16
29
17
18
19
20
21
22
23
30
24
25
26
27
28
29
30
31
31
August 1989
Wk
M
T
W
T
F
S
S
31
1
2
3
4
5
6
32
7
8
9
10
11
12
13
33
14
15
16
17
18
19
20
34
21
22
23
24
25
26
27
35
28
29
30
31
September 1989
Wk
M
T
W
T
F
S
S
35
1
2
3
36
4
5
6
7
8
9
10
37
11
12
13
14
15
16
17
38
18
19
20
21
22
23
24
39
25
26
27
28
29
30
October 1989
Wk
M
T
W
T
F
S
S
39
1
40
2
3
4
5
6
7
8
41
9
10
11
12
13
14
15
42
16
17
18
19
20
21
22
43
23
24
25
26
27
28
29
44
30
31
November 1989
Wk
M
T
W
T
F
S
S
44
1
2
3
4
5
45
6
7
8
9
10
11
12
46
13
14
15
16
17
18
19
47
20
21
22
23
24
25
26
48
27
28
29
30
December 1989
Wk
M
T
W
T
F
S
S
48
1
2
3
49
4
5
6
7
8
9
10
50
11
12
13
14
15
16
17
51
18
19
20
21
22
23
24
52
25
26
27
28
29
30
31

All 52 Weeks of 1989

WeekStarts (Mon)Ends (Sun)Federal holidays
1Jan 2, 1989Jan 8, 1989—
2Jan 9, 1989Jan 15, 1989—
3Jan 16, 1989Jan 22, 1989MLK Day
4Jan 23, 1989Jan 29, 1989—
5Jan 30, 1989Feb 5, 1989—
6Feb 6, 1989Feb 12, 1989—
7Feb 13, 1989Feb 19, 1989—
8Feb 20, 1989Feb 26, 1989Presidents' Day
9Feb 27, 1989Mar 5, 1989—
10Mar 6, 1989Mar 12, 1989—
11Mar 13, 1989Mar 19, 1989—
12Mar 20, 1989Mar 26, 1989—
13Mar 27, 1989Apr 2, 1989—
14Apr 3, 1989Apr 9, 1989—
15Apr 10, 1989Apr 16, 1989—
16Apr 17, 1989Apr 23, 1989—
17Apr 24, 1989Apr 30, 1989—
18May 1, 1989May 7, 1989—
19May 8, 1989May 14, 1989—
20May 15, 1989May 21, 1989—
21May 22, 1989May 28, 1989—
22May 29, 1989Jun 4, 1989Memorial Day
23Jun 5, 1989Jun 11, 1989—
24Jun 12, 1989Jun 18, 1989—
25Jun 19, 1989Jun 25, 1989—
26Jun 26, 1989Jul 2, 1989—
27Jul 3, 1989Jul 9, 1989Independence Day
28Jul 10, 1989Jul 16, 1989—
29Jul 17, 1989Jul 23, 1989—
30Jul 24, 1989Jul 30, 1989—
31Jul 31, 1989Aug 6, 1989—
32Aug 7, 1989Aug 13, 1989—
33Aug 14, 1989Aug 20, 1989—
34Aug 21, 1989Aug 27, 1989—
35Aug 28, 1989Sep 3, 1989—
36Sep 4, 1989Sep 10, 1989Labor Day
37Sep 11, 1989Sep 17, 1989—
38Sep 18, 1989Sep 24, 1989—
39Sep 25, 1989Oct 1, 1989—
40Oct 2, 1989Oct 8, 1989—
41Oct 9, 1989Oct 15, 1989Columbus Day
42Oct 16, 1989Oct 22, 1989—
43Oct 23, 1989Oct 29, 1989—
44Oct 30, 1989Nov 5, 1989—
45Nov 6, 1989Nov 12, 1989Veterans Day
46Nov 13, 1989Nov 19, 1989—
47Nov 20, 1989Nov 26, 1989Thanksgiving
48Nov 27, 1989Dec 3, 1989—
49Dec 4, 1989Dec 10, 1989—
50Dec 11, 1989Dec 17, 1989—
51Dec 18, 1989Dec 24, 1989—
52Dec 25, 1989Dec 31, 1989Christmas Day

1989 Week Numbers FAQ

How many weeks are in 1989?

1989 has 52 ISO weeks. Week 1 runs from Monday, January 2, 1989 to Sunday, January 8, 1989, and week 52 ends on Sunday, December 31, 1989.

What week number is January 1, 1989?

January 1, 1989 is a Sunday, so it belongs to week 52 of 1988. Week 1 of 1989 starts on Monday, January 2, 1989.

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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