All 52 Weeks of 2025
| Week | Starts (Mon) | Ends (Sun) | Federal holidays |
|---|---|---|---|
| 1 | Dec 30, 2024 | Jan 5, 2025 | New Year's Day |
| 2 | Jan 6, 2025 | Jan 12, 2025 | — |
| 3 | Jan 13, 2025 | Jan 19, 2025 | — |
| 4 | Jan 20, 2025 | Jan 26, 2025 | MLK Day |
| 5 | Jan 27, 2025 | Feb 2, 2025 | — |
| 6 | Feb 3, 2025 | Feb 9, 2025 | — |
| 7 | Feb 10, 2025 | Feb 16, 2025 | — |
| 8 | Feb 17, 2025 | Feb 23, 2025 | Presidents' Day |
| 9 | Feb 24, 2025 | Mar 2, 2025 | — |
| 10 | Mar 3, 2025 | Mar 9, 2025 | — |
| 11 | Mar 10, 2025 | Mar 16, 2025 | — |
| 12 | Mar 17, 2025 | Mar 23, 2025 | — |
| 13 | Mar 24, 2025 | Mar 30, 2025 | — |
| 14 | Mar 31, 2025 | Apr 6, 2025 | — |
| 15 | Apr 7, 2025 | Apr 13, 2025 | — |
| 16 | Apr 14, 2025 | Apr 20, 2025 | — |
| 17 | Apr 21, 2025 | Apr 27, 2025 | — |
| 18 | Apr 28, 2025 | May 4, 2025 | — |
| 19 | May 5, 2025 | May 11, 2025 | — |
| 20 | May 12, 2025 | May 18, 2025 | — |
| 21 | May 19, 2025 | May 25, 2025 | — |
| 22 | May 26, 2025 | Jun 1, 2025 | Memorial Day |
| 23 | Jun 2, 2025 | Jun 8, 2025 | — |
| 24 | Jun 9, 2025 | Jun 15, 2025 | — |
| 25 | Jun 16, 2025 | Jun 22, 2025 | Juneteenth |
| 26 | Jun 23, 2025 | Jun 29, 2025 | — |
| 27 | Jun 30, 2025 | Jul 6, 2025 | Independence Day |
| 28 | Jul 7, 2025 | Jul 13, 2025 | — |
| 29 | Jul 14, 2025 | Jul 20, 2025 | — |
| 30 | Jul 21, 2025 | Jul 27, 2025 | — |
| 31 | Jul 28, 2025 | Aug 3, 2025 | — |
| 32 | Aug 4, 2025 | Aug 10, 2025 | — |
| 33 | Aug 11, 2025 | Aug 17, 2025 | — |
| 34 | Aug 18, 2025 | Aug 24, 2025 | — |
| 35 | Aug 25, 2025 | Aug 31, 2025 | — |
| 36 | Sep 1, 2025 | Sep 7, 2025 | Labor Day |
| 37 | Sep 8, 2025 | Sep 14, 2025 | — |
| 38 | Sep 15, 2025 | Sep 21, 2025 | — |
| 39 | Sep 22, 2025 | Sep 28, 2025 | — |
| 40 | Sep 29, 2025 | Oct 5, 2025 | — |
| 41 | Oct 6, 2025 | Oct 12, 2025 | — |
| 42 | Oct 13, 2025 | Oct 19, 2025 | Columbus Day |
| 43 | Oct 20, 2025 | Oct 26, 2025 | — |
| 44 | Oct 27, 2025 | Nov 2, 2025 | — |
| 45 | Nov 3, 2025 | Nov 9, 2025 | — |
| 46 | Nov 10, 2025 | Nov 16, 2025 | Veterans Day |
| 47 | Nov 17, 2025 | Nov 23, 2025 | — |
| 48 | Nov 24, 2025 | Nov 30, 2025 | Thanksgiving |
| 49 | Dec 1, 2025 | Dec 7, 2025 | — |
| 50 | Dec 8, 2025 | Dec 14, 2025 | — |
| 51 | Dec 15, 2025 | Dec 21, 2025 | — |
| 52 | Dec 22, 2025 | Dec 28, 2025 | Christmas Day |
2025 Week Numbers FAQ
How many weeks are in 2025?
2025 has 52 ISO weeks. Week 1 runs from Monday, December 30, 2024 to Sunday, January 5, 2025, and week 52 ends on Sunday, December 28, 2025.
What week number is January 1, 2025?
January 1, 2025 is a Wednesday in week 1 of 2025.
How are ISO week numbers counted?
ISO 8601 weeks start on Monday. Week 1 is the week that contains the first Thursday of the year, which is the same as the week that contains January 4. A year has 52 weeks, or 53 when it starts on a Thursday (or on a Wednesday in a leap year).
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