Week 13 2025: March 24–30, 2025
Week 13 starts on Monday, March 24, 2025 and ends on Sunday, March 30, 2025.
Quick answer
Week 13 of 2025 is the seven-day ISO week from March 24, 2025 to March 30, 2025. ISO weeks always run from Monday to Sunday.
Use week 13 in professional planning
This permanent week reference can be used in project plans, payroll notes, weekly reports, production schedules and deadline documents. Share the week number together with the ISO year and exact date range to avoid ambiguity around New Year.
For calculations that span more than one week, use the weeks between dates calculator. For work schedules, compare the same range with the business days calculator or open the project timeline calculator.
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FAQ
What are the dates for week 13 of 2025?
The dates are March 24, 2025 through March 30, 2025.
What day does this week start?
It starts on Monday.
What day does this week end?
It ends on Sunday.
How should I write this week in a report?
Use “ISO week 13 of 2025 (Mar 24–Mar 30, 2025)” so the week-year and date range are both clear.