Week Numbers 2025
Every ISO 8601 week of 2025 with its Monday-to-Sunday dates. 2025 has 52 weeks and 365 days; it starts on a Wednesday and ends on a Wednesday. Print a 2025 calendar with week numbers using the tool below.
January 2025
Wk
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
30
31
1
New Year
2
3
4
5
2
6
7
8
9
10
11
12
3
13
14
15
16
17
18
19
4
20
21
22
23
24
25
26
5
27
28
29
30
31
1
2
Tip: For the best print results, enable "Background graphics" in your browser's print settings if your calendar uses weekend shading or colour styles.
ISO week numbers 2025
| Week | From (Mon) | To (Sun) |
|---|---|---|
| 1 | 30 Dec 2024 | 5 Jan |
| 2 | 6 Jan | 12 Jan |
| 3 | 13 Jan | 19 Jan |
| 4 | 20 Jan | 26 Jan |
| 5 | 27 Jan | 2 Feb |
| 6 | 3 Feb | 9 Feb |
| 7 | 10 Feb | 16 Feb |
| 8 | 17 Feb | 23 Feb |
| 9 | 24 Feb | 2 Mar |
| 10 | 3 Mar | 9 Mar |
| 11 | 10 Mar | 16 Mar |
| 12 | 17 Mar | 23 Mar |
| 13 | 24 Mar | 30 Mar |
| 14 | 31 Mar | 6 Apr |
| 15 | 7 Apr | 13 Apr |
| 16 | 14 Apr | 20 Apr |
| 17 | 21 Apr | 27 Apr |
| 18 | 28 Apr | 4 May |
| 19 | 5 May | 11 May |
| 20 | 12 May | 18 May |
| 21 | 19 May | 25 May |
| 22 | 26 May | 1 Jun |
| 23 | 2 Jun | 8 Jun |
| 24 | 9 Jun | 15 Jun |
| 25 | 16 Jun | 22 Jun |
| 26 | 23 Jun | 29 Jun |
| Week | From (Mon) | To (Sun) |
|---|---|---|
| 27 | 30 Jun | 6 Jul |
| 28 | 7 Jul | 13 Jul |
| 29 | 14 Jul | 20 Jul |
| 30 | 21 Jul | 27 Jul |
| 31 | 28 Jul | 3 Aug |
| 32 | 4 Aug | 10 Aug |
| 33 | 11 Aug | 17 Aug |
| 34 | 18 Aug | 24 Aug |
| 35 | 25 Aug | 31 Aug |
| 36 | 1 Sep | 7 Sep |
| 37 | 8 Sep | 14 Sep |
| 38 | 15 Sep | 21 Sep |
| 39 | 22 Sep | 28 Sep |
| 40 | 29 Sep | 5 Oct |
| 41 | 6 Oct | 12 Oct |
| 42 | 13 Oct | 19 Oct |
| 43 | 20 Oct | 26 Oct |
| 44 | 27 Oct | 2 Nov |
| 45 | 3 Nov | 9 Nov |
| 46 | 10 Nov | 16 Nov |
| 47 | 17 Nov | 23 Nov |
| 48 | 24 Nov | 30 Nov |
| 49 | 1 Dec | 7 Dec |
| 50 | 8 Dec | 14 Dec |
| 51 | 15 Dec | 21 Dec |
| 52 | 22 Dec | 28 Dec |
Frequently Asked Questions
2025 has 52 ISO weeks. Week 1 runs from Monday 30 December 2024 to Sunday 5 January 2025, and week 52 runs from Monday 22 December 2025 to Sunday 28 December 2025.
This page lists 2025. For the current week, open the page for this year — the week containing today is highlighted.
ISO 8601 weeks start on Monday. Week 1 is the week containing the first Thursday of the year (equivalently, the week containing 4 January). A year has 52 weeks, or 53 when it starts on a Thursday — or on a Wednesday in a leap year.
Yes. The calendar above has week numbers switched on and starts the week on Monday, as ISO 8601 requires. Download it as a PDF or print it.