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Week Numbers 1991

1991 has 52 ISO weeks. Week 1 starts on Monday, December 31, 1990, and the last week ends on Sunday, December 29, 1991.

ISO week numbers 1991

Weeks start on Monday. Week 1 is the week with the first Thursday of January. Find the week number of any date.

WeekMondaySunday
1Dec 31, 1990Jan 6, 1991
2Jan 7, 1991Jan 13, 1991
3Jan 14, 1991Jan 20, 1991
4Jan 21, 1991Jan 27, 1991
5Jan 28, 1991Feb 3, 1991
6Feb 4, 1991Feb 10, 1991
7Feb 11, 1991Feb 17, 1991
8Feb 18, 1991Feb 24, 1991
9Feb 25, 1991Mar 3, 1991
10Mar 4, 1991Mar 10, 1991
11Mar 11, 1991Mar 17, 1991
12Mar 18, 1991Mar 24, 1991
13Mar 25, 1991Mar 31, 1991
14Apr 1, 1991Apr 7, 1991
15Apr 8, 1991Apr 14, 1991
16Apr 15, 1991Apr 21, 1991
17Apr 22, 1991Apr 28, 1991
18Apr 29, 1991May 5, 1991
19May 6, 1991May 12, 1991
20May 13, 1991May 19, 1991
21May 20, 1991May 26, 1991
22May 27, 1991Jun 2, 1991
23Jun 3, 1991Jun 9, 1991
24Jun 10, 1991Jun 16, 1991
25Jun 17, 1991Jun 23, 1991
26Jun 24, 1991Jun 30, 1991
27Jul 1, 1991Jul 7, 1991
28Jul 8, 1991Jul 14, 1991
29Jul 15, 1991Jul 21, 1991
30Jul 22, 1991Jul 28, 1991
31Jul 29, 1991Aug 4, 1991
32Aug 5, 1991Aug 11, 1991
33Aug 12, 1991Aug 18, 1991
34Aug 19, 1991Aug 25, 1991
35Aug 26, 1991Sep 1, 1991
36Sep 2, 1991Sep 8, 1991
37Sep 9, 1991Sep 15, 1991
38Sep 16, 1991Sep 22, 1991
39Sep 23, 1991Sep 29, 1991
40Sep 30, 1991Oct 6, 1991
41Oct 7, 1991Oct 13, 1991
42Oct 14, 1991Oct 20, 1991
43Oct 21, 1991Oct 27, 1991
44Oct 28, 1991Nov 3, 1991
45Nov 4, 1991Nov 10, 1991
46Nov 11, 1991Nov 17, 1991
47Nov 18, 1991Nov 24, 1991
48Nov 25, 1991Dec 1, 1991
49Dec 2, 1991Dec 8, 1991
50Dec 9, 1991Dec 15, 1991
51Dec 16, 1991Dec 22, 1991
52Dec 23, 1991Dec 29, 1991
US weeks starting on Sunday

In the US, week 1 is the week that contains January 1, and weeks start on Sunday.

WeekSundaySaturday
1Dec 30, 1990Jan 5, 1991
2Jan 6, 1991Jan 12, 1991
3Jan 13, 1991Jan 19, 1991
4Jan 20, 1991Jan 26, 1991
5Jan 27, 1991Feb 2, 1991
6Feb 3, 1991Feb 9, 1991
7Feb 10, 1991Feb 16, 1991
8Feb 17, 1991Feb 23, 1991
9Feb 24, 1991Mar 2, 1991
10Mar 3, 1991Mar 9, 1991
11Mar 10, 1991Mar 16, 1991
12Mar 17, 1991Mar 23, 1991
13Mar 24, 1991Mar 30, 1991
14Mar 31, 1991Apr 6, 1991
15Apr 7, 1991Apr 13, 1991
16Apr 14, 1991Apr 20, 1991
17Apr 21, 1991Apr 27, 1991
18Apr 28, 1991May 4, 1991
19May 5, 1991May 11, 1991
20May 12, 1991May 18, 1991
21May 19, 1991May 25, 1991
22May 26, 1991Jun 1, 1991
23Jun 2, 1991Jun 8, 1991
24Jun 9, 1991Jun 15, 1991
25Jun 16, 1991Jun 22, 1991
26Jun 23, 1991Jun 29, 1991
27Jun 30, 1991Jul 6, 1991
28Jul 7, 1991Jul 13, 1991
29Jul 14, 1991Jul 20, 1991
30Jul 21, 1991Jul 27, 1991
31Jul 28, 1991Aug 3, 1991
32Aug 4, 1991Aug 10, 1991
33Aug 11, 1991Aug 17, 1991
34Aug 18, 1991Aug 24, 1991
35Aug 25, 1991Aug 31, 1991
36Sep 1, 1991Sep 7, 1991
37Sep 8, 1991Sep 14, 1991
38Sep 15, 1991Sep 21, 1991
39Sep 22, 1991Sep 28, 1991
40Sep 29, 1991Oct 5, 1991
41Oct 6, 1991Oct 12, 1991
42Oct 13, 1991Oct 19, 1991
43Oct 20, 1991Oct 26, 1991
44Oct 27, 1991Nov 2, 1991
45Nov 3, 1991Nov 9, 1991
46Nov 10, 1991Nov 16, 1991
47Nov 17, 1991Nov 23, 1991
48Nov 24, 1991Nov 30, 1991
49Dec 1, 1991Dec 7, 1991
50Dec 8, 1991Dec 14, 1991
51Dec 15, 1991Dec 21, 1991
52Dec 22, 1991Dec 28, 1991
53Dec 29, 1991Jan 4, 1992

Printable 1991 calendar with week numbers

The calendar shows ISO week numbers with weeks starting on Monday. Change either in the settings.

Saved in this browserClick any day to type on it. Use ← → for the previous or next month.Tap any day to add a note or highlight it.

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