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Week Numbers 2009

2009 has 53 ISO weeks. Week 1 starts on Monday, December 29, 2008, and the last week ends on Sunday, January 3, 2010.

ISO week numbers 2009

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

Week	Monday	Sunday
1	Dec 29, 2008	Jan 4, 2009
2	Jan 5, 2009	Jan 11, 2009
3	Jan 12, 2009	Jan 18, 2009
4	Jan 19, 2009	Jan 25, 2009
5	Jan 26, 2009	Feb 1, 2009
6	Feb 2, 2009	Feb 8, 2009
7	Feb 9, 2009	Feb 15, 2009
8	Feb 16, 2009	Feb 22, 2009
9	Feb 23, 2009	Mar 1, 2009
10	Mar 2, 2009	Mar 8, 2009
11	Mar 9, 2009	Mar 15, 2009
12	Mar 16, 2009	Mar 22, 2009
13	Mar 23, 2009	Mar 29, 2009
14	Mar 30, 2009	Apr 5, 2009
15	Apr 6, 2009	Apr 12, 2009
16	Apr 13, 2009	Apr 19, 2009
17	Apr 20, 2009	Apr 26, 2009
18	Apr 27, 2009	May 3, 2009
19	May 4, 2009	May 10, 2009
20	May 11, 2009	May 17, 2009
21	May 18, 2009	May 24, 2009
22	May 25, 2009	May 31, 2009
23	Jun 1, 2009	Jun 7, 2009
24	Jun 8, 2009	Jun 14, 2009
25	Jun 15, 2009	Jun 21, 2009
26	Jun 22, 2009	Jun 28, 2009
27	Jun 29, 2009	Jul 5, 2009
28	Jul 6, 2009	Jul 12, 2009
29	Jul 13, 2009	Jul 19, 2009
30	Jul 20, 2009	Jul 26, 2009
31	Jul 27, 2009	Aug 2, 2009
32	Aug 3, 2009	Aug 9, 2009
33	Aug 10, 2009	Aug 16, 2009
34	Aug 17, 2009	Aug 23, 2009
35	Aug 24, 2009	Aug 30, 2009
36	Aug 31, 2009	Sep 6, 2009
37	Sep 7, 2009	Sep 13, 2009
38	Sep 14, 2009	Sep 20, 2009
39	Sep 21, 2009	Sep 27, 2009
40	Sep 28, 2009	Oct 4, 2009
41	Oct 5, 2009	Oct 11, 2009
42	Oct 12, 2009	Oct 18, 2009
43	Oct 19, 2009	Oct 25, 2009
44	Oct 26, 2009	Nov 1, 2009
45	Nov 2, 2009	Nov 8, 2009
46	Nov 9, 2009	Nov 15, 2009
47	Nov 16, 2009	Nov 22, 2009
48	Nov 23, 2009	Nov 29, 2009
49	Nov 30, 2009	Dec 6, 2009
50	Dec 7, 2009	Dec 13, 2009
51	Dec 14, 2009	Dec 20, 2009
52	Dec 21, 2009	Dec 27, 2009
53	Dec 28, 2009	Jan 3, 2010

US weeks starting on Sunday

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

Week	Sunday	Saturday
1	Dec 28, 2008	Jan 3, 2009
2	Jan 4, 2009	Jan 10, 2009
3	Jan 11, 2009	Jan 17, 2009
4	Jan 18, 2009	Jan 24, 2009
5	Jan 25, 2009	Jan 31, 2009
6	Feb 1, 2009	Feb 7, 2009
7	Feb 8, 2009	Feb 14, 2009
8	Feb 15, 2009	Feb 21, 2009
9	Feb 22, 2009	Feb 28, 2009
10	Mar 1, 2009	Mar 7, 2009
11	Mar 8, 2009	Mar 14, 2009
12	Mar 15, 2009	Mar 21, 2009
13	Mar 22, 2009	Mar 28, 2009
14	Mar 29, 2009	Apr 4, 2009
15	Apr 5, 2009	Apr 11, 2009
16	Apr 12, 2009	Apr 18, 2009
17	Apr 19, 2009	Apr 25, 2009
18	Apr 26, 2009	May 2, 2009
19	May 3, 2009	May 9, 2009
20	May 10, 2009	May 16, 2009
21	May 17, 2009	May 23, 2009
22	May 24, 2009	May 30, 2009
23	May 31, 2009	Jun 6, 2009
24	Jun 7, 2009	Jun 13, 2009
25	Jun 14, 2009	Jun 20, 2009
26	Jun 21, 2009	Jun 27, 2009
27	Jun 28, 2009	Jul 4, 2009
28	Jul 5, 2009	Jul 11, 2009
29	Jul 12, 2009	Jul 18, 2009
30	Jul 19, 2009	Jul 25, 2009
31	Jul 26, 2009	Aug 1, 2009
32	Aug 2, 2009	Aug 8, 2009
33	Aug 9, 2009	Aug 15, 2009
34	Aug 16, 2009	Aug 22, 2009
35	Aug 23, 2009	Aug 29, 2009
36	Aug 30, 2009	Sep 5, 2009
37	Sep 6, 2009	Sep 12, 2009
38	Sep 13, 2009	Sep 19, 2009
39	Sep 20, 2009	Sep 26, 2009
40	Sep 27, 2009	Oct 3, 2009
41	Oct 4, 2009	Oct 10, 2009
42	Oct 11, 2009	Oct 17, 2009
43	Oct 18, 2009	Oct 24, 2009
44	Oct 25, 2009	Oct 31, 2009
45	Nov 1, 2009	Nov 7, 2009
46	Nov 8, 2009	Nov 14, 2009
47	Nov 15, 2009	Nov 21, 2009
48	Nov 22, 2009	Nov 28, 2009
49	Nov 29, 2009	Dec 5, 2009
50	Dec 6, 2009	Dec 12, 2009
51	Dec 13, 2009	Dec 19, 2009
52	Dec 20, 2009	Dec 26, 2009
53	Dec 27, 2009	Jan 2, 2010

Printable 2009 calendar with week numbers

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