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Week Numbers 2039
| Week # | Start date (Mon) | End date (Sun) |
|---|---|---|
| ▸ 1 | Mon, 3 Jan 2039 | Sun, 9 Jan 2039 |
| ▸ 2 | Mon, 10 Jan 2039 | Sun, 16 Jan 2039 |
| ▸ 3 | Mon, 17 Jan 2039 | Sun, 23 Jan 2039 |
| ▸ 4 | Mon, 24 Jan 2039 | Sun, 30 Jan 2039 |
| ▸ 5 | Mon, 31 Jan 2039 | Sun, 6 Feb 2039 |
| ▸ 6 | Mon, 7 Feb 2039 | Sun, 13 Feb 2039 |
| ▸ 7 | Mon, 14 Feb 2039 | Sun, 20 Feb 2039 |
| ▸ 8 | Mon, 21 Feb 2039 | Sun, 27 Feb 2039 |
| ▸ 9 | Mon, 28 Feb 2039 | Sun, 6 Mar 2039 |
| ▸ 10 | Mon, 7 Mar 2039 | Sun, 13 Mar 2039 |
| ▸ 11 | Mon, 14 Mar 2039 | Sun, 20 Mar 2039 |
| ▸ 12 | Mon, 21 Mar 2039 | Sun, 27 Mar 2039 |
| ▸ 13 | Mon, 28 Mar 2039 | Sun, 3 Apr 2039 |
| ▸ 14 | Mon, 4 Apr 2039 | Sun, 10 Apr 2039 |
| ▸ 15 | Mon, 11 Apr 2039 | Sun, 17 Apr 2039 |
| ▸ 16 | Mon, 18 Apr 2039 | Sun, 24 Apr 2039 |
| ▸ 17 | Mon, 25 Apr 2039 | Sun, 1 May 2039 |
| ▸ 18 | Mon, 2 May 2039 | Sun, 8 May 2039 |
| ▸ 19 | Mon, 9 May 2039 | Sun, 15 May 2039 |
| ▸ 20 | Mon, 16 May 2039 | Sun, 22 May 2039 |
| ▸ 21 | Mon, 23 May 2039 | Sun, 29 May 2039 |
| ▸ 22 | Mon, 30 May 2039 | Sun, 5 Jun 2039 |
| ▸ 23 | Mon, 6 Jun 2039 | Sun, 12 Jun 2039 |
| ▸ 24 | Mon, 13 Jun 2039 | Sun, 19 Jun 2039 |
| ▸ 25 | Mon, 20 Jun 2039 | Sun, 26 Jun 2039 |
| ▸ 26 | Mon, 27 Jun 2039 | Sun, 3 Jul 2039 |
| ▸ 27 | Mon, 4 Jul 2039 | Sun, 10 Jul 2039 |
| ▸ 28 | Mon, 11 Jul 2039 | Sun, 17 Jul 2039 |
| ▸ 29 | Mon, 18 Jul 2039 | Sun, 24 Jul 2039 |
| ▸ 30 | Mon, 25 Jul 2039 | Sun, 31 Jul 2039 |
| ▸ 31 | Mon, 1 Aug 2039 | Sun, 7 Aug 2039 |
| ▸ 32 | Mon, 8 Aug 2039 | Sun, 14 Aug 2039 |
| ▸ 33 | Mon, 15 Aug 2039 | Sun, 21 Aug 2039 |
| ▸ 34 | Mon, 22 Aug 2039 | Sun, 28 Aug 2039 |
| ▸ 35 | Mon, 29 Aug 2039 | Sun, 4 Sep 2039 |
| ▸ 36 | Mon, 5 Sep 2039 | Sun, 11 Sep 2039 |
| ▸ 37 | Mon, 12 Sep 2039 | Sun, 18 Sep 2039 |
| ▸ 38 | Mon, 19 Sep 2039 | Sun, 25 Sep 2039 |
| ▸ 39 | Mon, 26 Sep 2039 | Sun, 2 Oct 2039 |
| ▸ 40 | Mon, 3 Oct 2039 | Sun, 9 Oct 2039 |
| ▸ 41 | Mon, 10 Oct 2039 | Sun, 16 Oct 2039 |
| ▸ 42 | Mon, 17 Oct 2039 | Sun, 23 Oct 2039 |
| ▸ 43 | Mon, 24 Oct 2039 | Sun, 30 Oct 2039 |
| ▸ 44 | Mon, 31 Oct 2039 | Sun, 6 Nov 2039 |
| ▸ 45 | Mon, 7 Nov 2039 | Sun, 13 Nov 2039 |
| ▸ 46 | Mon, 14 Nov 2039 | Sun, 20 Nov 2039 |
| ▸ 47 | Mon, 21 Nov 2039 | Sun, 27 Nov 2039 |
| ▸ 48 | Mon, 28 Nov 2039 | Sun, 4 Dec 2039 |
| ▸ 49 | Mon, 5 Dec 2039 | Sun, 11 Dec 2039 |
| ▸ 50 | Mon, 12 Dec 2039 | Sun, 18 Dec 2039 |
| ▸ 51 | Mon, 19 Dec 2039 | Sun, 25 Dec 2039 |
| ▸ 52 | Mon, 26 Dec 2039 | Sun, 1 Jan 2040 |
About ISO 8601 Week Numbers
Under the ISO 8601 standard, weeks start on Monday and are numbered from 1 to 52 or 53. Week 1 is the week that contains the first Thursday of the year — equivalently, the week containing January 4th. As a result, the first few days of January can fall in the last week of the previous year, and the last days of December can fall in week 1 of the next year.
A year has 53 ISO weeks when it starts on a Thursday, or on a Wednesday in a leap year; otherwise it has 52. 2039 has 52 ISO weeks.