When is week 13?
In 2026, week 13 runs from Monday, March 23, 2026 to Sunday, March 29, 2026.
It ended 189 days ago.
Week 13 in other years
| Year | Starts | Ends |
|---|---|---|
| 2025 | Mon, Mar 24, 2025 | Sun, Mar 30, 2025 |
| 2026 | Mon, Mar 23, 2026 | Sun, Mar 29, 2026 |
| 2027 | Mon, Mar 29, 2027 | Sun, Apr 4, 2027 |
| 2028 | Mon, Mar 27, 2028 | Sun, Apr 2, 2028 |
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Questions & answers
What dates are in week 13?
In 2026, week 13 is March 23, 2026 to March 29, 2026.
How are week numbers counted?
We use ISO 8601 week numbers: weeks start on Monday, and week 1 is the week that contains the first Thursday of the year.