Calendar Weeks 2021

Calendar 2021 with Week Numbers

Calendar 2021 |

How many weeks in a year 2021?

The year 2021 has 52 calendar weeks. The first calendar week of 2021 starts on Monday, January 4, 2021 and ends on Sunday, January 10, 2021.

When does the first calendar week number 2021 begin?

The first week of 2021 starts on Monday, January 4, 2021.

When does the first calendar week number 2021 end?

The last week of 2021 ends on Sunday, January 10, 2021.

The current week (week 50) is highlighted.

Find more info on our main Week Numbers page.

The highest week number in a year is either 52 or 53.

Calendar 2021 with week numbers. Current week number is WN 50.

Week numbers of 2021 in tabular overview.
WN Mo Tu We Th Fr Sa Su
Week 01 Jan 4 Jan 5 Jan 6 Jan 7 Jan 8 Jan 9 Jan 10
Week 02 Jan 11 Jan 12 Jan 13 Jan 14 Jan 15 Jan 16 Jan 17
Week 03 Jan 18 Jan 19 Jan 20 Jan 21 Jan 22 Jan 23 Jan 24
Week 04 Jan 25 Jan 26 Jan 27 Jan 28 Jan 29 Jan 30 Jan 31
Week 05 Feb 1 Feb 2 Feb 3 Feb 4 Feb 5 Feb 6 Feb 7
Week 06 Feb 8 Feb 9 Feb 10 Feb 11 Feb 12 Feb 13 Feb 14
Week 07 Feb 15 Feb 16 Feb 17 Feb 18 Feb 19 Feb 20 Feb 21
Week 08 Feb 22 Feb 23 Feb 24 Feb 25 Feb 26 Feb 27 Feb 28
Week 09 Mar 1 Mar 2 Mar 3 Mar 4 Mar 5 Mar 6 Mar 7
Week 10 Mar 8 Mar 9 Mar 10 Mar 11 Mar 12 Mar 13 Mar 14
Week 11 Mar 15 Mar 16 Mar 17 Mar 18 Mar 19 Mar 20 Mar 21
Week 12 Mar 22 Mar 23 Mar 24 Mar 25 Mar 26 Mar 27 Mar 28
Week 13 Mar 29 Mar 30 Mar 31 Apr 1 Apr 2 Apr 3 Apr 4
Week 14 Apr 5 Apr 6 Apr 7 Apr 8 Apr 9 Apr 10 Apr 11
Week 15 Apr 12 Apr 13 Apr 14 Apr 15 Apr 16 Apr 17 Apr 18
Week 16 Apr 19 Apr 20 Apr 21 Apr 22 Apr 23 Apr 24 Apr 25
Week 17 Apr 26 Apr 27 Apr 28 Apr 29 Apr 30 May 1 May 2
Week 18 May 3 May 4 May 5 May 6 May 7 May 8 May 9
Week 19 May 10 May 11 May 12 May 13 May 14 May 15 May 16
Week 20 May 17 May 18 May 19 May 20 May 21 May 22 May 23
Week 21 May 24 May 25 May 26 May 27 May 28 May 29 May 30
Week 22 May 31 Jun 1 Jun 2 Jun 3 Jun 4 Jun 5 Jun 6
Week 23 Jun 7 Jun 8 Jun 9 Jun 10 Jun 11 Jun 12 Jun 13
Week 24 Jun 14 Jun 15 Jun 16 Jun 17 Jun 18 Jun 19 Jun 20
Week 25 Jun 21 Jun 22 Jun 23 Jun 24 Jun 25 Jun 26 Jun 27
Week 26 Jun 28 Jun 29 Jun 30 Jul 1 Jul 2 Jul 3 Jul 4
Week 27 Jul 5 Jul 6 Jul 7 Jul 8 Jul 9 Jul 10 Jul 11
Week 28 Jul 12 Jul 13 Jul 14 Jul 15 Jul 16 Jul 17 Jul 18
Week 29 Jul 19 Jul 20 Jul 21 Jul 22 Jul 23 Jul 24 Jul 25
Week 30 Jul 26 Jul 27 Jul 28 Jul 29 Jul 30 Jul 31 Aug 1
Week 31 Aug 2 Aug 3 Aug 4 Aug 5 Aug 6 Aug 7 Aug 8
Week 32 Aug 9 Aug 10 Aug 11 Aug 12 Aug 13 Aug 14 Aug 15
Week 33 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21 Aug 22
Week 34 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28 Aug 29
Week 35 Aug 30 Aug 31 Sep 1 Sep 2 Sep 3 Sep 4 Sep 5
Week 36 Sep 6 Sep 7 Sep 8 Sep 9 Sep 10 Sep 11 Sep 12
Week 37 Sep 13 Sep 14 Sep 15 Sep 16 Sep 17 Sep 18 Sep 19
Week 38 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24 Sep 25 Sep 26
Week 39 Sep 27 Sep 28 Sep 29 Sep 30 Oct 1 Oct 2 Oct 3
Week 40 Oct 4 Oct 5 Oct 6 Oct 7 Oct 8 Oct 9 Oct 10
Week 41 Oct 11 Oct 12 Oct 13 Oct 14 Oct 15 Oct 16 Oct 17
Week 42 Oct 18 Oct 19 Oct 20 Oct 21 Oct 22 Oct 23 Oct 24
Week 43 Oct 25 Oct 26 Oct 27 Oct 28 Oct 29 Oct 30 Oct 31
Week 44 Nov 1 Nov 2 Nov 3 Nov 4 Nov 5 Nov 6 Nov 7
Week 45 Nov 8 Nov 9 Nov 10 Nov 11 Nov 12 Nov 13 Nov 14
Week 46 Nov 15 Nov 16 Nov 17 Nov 18 Nov 19 Nov 20 Nov 21
Week 47 Nov 22 Nov 23 Nov 24 Nov 25 Nov 26 Nov 27 Nov 28
Week 48 Nov 29 Nov 30 Dec 1 Dec 2 Dec 3 Dec 4 Dec 5
Week 49 Dec 6 Dec 7 Dec 8 Dec 9 Dec 10 Dec 11 Dec 12
Week 50 Dec 13 Dec 14 Dec 15 Dec 16 Dec 17 Dec 18 Dec 19
Week 51 Dec 20 Dec 21 Dec 22 Dec 23 Dec 24 Dec 25 Dec 26
Week 52 Dec 27 Dec 28 Dec 29 Dec 30 Dec 31 Jan 1 Jan 2