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What week is it? Current week number
Today is in week
39
Mon 21 Sep 2026 – Sun 27 Sep 2026
Week 39 of 53 in 2026 · ISO 8601, weeks start Monday
- Mon21
- Tue22
- Wed23
- Thu24
- Fri25
- Sat26
- Sun27
All weeks of 2026
2026 has 53 ISO weeks. Each runs Monday to Sunday; week 1 starts on Monday 29 December 2025.
| Week | Monday | Sunday |
|---|---|---|
| 1 | Mon 29 Dec 2025 | Sun 4 Jan 2026 |
| 2 | Mon 5 Jan 2026 | Sun 11 Jan 2026 |
| 3 | Mon 12 Jan 2026 | Sun 18 Jan 2026 |
| 4 | Mon 19 Jan 2026 | Sun 25 Jan 2026 |
| 5 | Mon 26 Jan 2026 | Sun 1 Feb 2026 |
| 6 | Mon 2 Feb 2026 | Sun 8 Feb 2026 |
| 7 | Mon 9 Feb 2026 | Sun 15 Feb 2026 |
| 8 | Mon 16 Feb 2026 | Sun 22 Feb 2026 |
| 9 | Mon 23 Feb 2026 | Sun 1 Mar 2026 |
| 10 | Mon 2 Mar 2026 | Sun 8 Mar 2026 |
| 11 | Mon 9 Mar 2026 | Sun 15 Mar 2026 |
| 12 | Mon 16 Mar 2026 | Sun 22 Mar 2026 |
| 13 | Mon 23 Mar 2026 | Sun 29 Mar 2026 |
| 14 | Mon 30 Mar 2026 | Sun 5 Apr 2026 |
| 15 | Mon 6 Apr 2026 | Sun 12 Apr 2026 |
| 16 | Mon 13 Apr 2026 | Sun 19 Apr 2026 |
| 17 | Mon 20 Apr 2026 | Sun 26 Apr 2026 |
| 18 | Mon 27 Apr 2026 | Sun 3 May 2026 |
| 19 | Mon 4 May 2026 | Sun 10 May 2026 |
| 20 | Mon 11 May 2026 | Sun 17 May 2026 |
| 21 | Mon 18 May 2026 | Sun 24 May 2026 |
| 22 | Mon 25 May 2026 | Sun 31 May 2026 |
| 23 | Mon 1 Jun 2026 | Sun 7 Jun 2026 |
| 24 | Mon 8 Jun 2026 | Sun 14 Jun 2026 |
| 25 | Mon 15 Jun 2026 | Sun 21 Jun 2026 |
| 26 | Mon 22 Jun 2026 | Sun 28 Jun 2026 |
| 27 | Mon 29 Jun 2026 | Sun 5 Jul 2026 |
| 28 | Mon 6 Jul 2026 | Sun 12 Jul 2026 |
| 29 | Mon 13 Jul 2026 | Sun 19 Jul 2026 |
| 30 | Mon 20 Jul 2026 | Sun 26 Jul 2026 |
| 31 | Mon 27 Jul 2026 | Sun 2 Aug 2026 |
| 32 | Mon 3 Aug 2026 | Sun 9 Aug 2026 |
| 33 | Mon 10 Aug 2026 | Sun 16 Aug 2026 |
| 34 | Mon 17 Aug 2026 | Sun 23 Aug 2026 |
| 35 | Mon 24 Aug 2026 | Sun 30 Aug 2026 |
| 36 | Mon 31 Aug 2026 | Sun 6 Sep 2026 |
| 37 | Mon 7 Sep 2026 | Sun 13 Sep 2026 |
| 38 | Mon 14 Sep 2026 | Sun 20 Sep 2026 |
| 39 | Mon 21 Sep 2026 | Sun 27 Sep 2026 |
| 40 | Mon 28 Sep 2026 | Sun 4 Oct 2026 |
| 41 | Mon 5 Oct 2026 | Sun 11 Oct 2026 |
| 42 | Mon 12 Oct 2026 | Sun 18 Oct 2026 |
| 43 | Mon 19 Oct 2026 | Sun 25 Oct 2026 |
| 44 | Mon 26 Oct 2026 | Sun 1 Nov 2026 |
| 45 | Mon 2 Nov 2026 | Sun 8 Nov 2026 |
| 46 | Mon 9 Nov 2026 | Sun 15 Nov 2026 |
| 47 | Mon 16 Nov 2026 | Sun 22 Nov 2026 |
| 48 | Mon 23 Nov 2026 | Sun 29 Nov 2026 |
| 49 | Mon 30 Nov 2026 | Sun 6 Dec 2026 |
| 50 | Mon 7 Dec 2026 | Sun 13 Dec 2026 |
| 51 | Mon 14 Dec 2026 | Sun 20 Dec 2026 |
| 52 | Mon 21 Dec 2026 | Sun 27 Dec 2026 |
| 53 | Mon 28 Dec 2026 | Sun 3 Jan 2027 |
Week numbers — FAQ
What week is it today?
Today, Thursday 24 September 2026, is in week 39 of 2026. That week runs from Monday 21 September to Sunday 27 September 2026 (India time).
How are week numbers counted?
This page uses ISO 8601 week numbers, the international standard: weeks run Monday to Sunday, and week 1 is the week that contains the first Thursday of the year (the same as the week containing 4 January).
How many weeks are there in 2026?
2026 has 53 ISO weeks. Week 1 starts on Monday 29 December 2025. Most years have 52 weeks; a year has 53 when it starts on a Thursday, or on a Wednesday in a leap year.
Why can 1 January be in week 52 or 53?
Because ISO weeks never split: if 1 January falls on a Friday, Saturday or Sunday, that week belongs to the previous year, and week 1 starts on the following Monday. Likewise the last days of December can fall in week 1 of the next year.
Does DayFlow use the same weeks?
DayFlow, a free weekly planner, lays out each week from Monday to Sunday, the same span as an ISO week. It does not show week numbers; use this page when you need one.
Also from DayFlow: a free Pomodoro timer for focused work sessions, and DayFlow itself — a weekly planner with a time-table calendar, repeating tasks and auto-saving notes.
