Week 13 of 2025 runs March 24, 2025 to March 30, 2025.
Week 13 starts on Monday, March 24, 2025 and ends on Sunday, March 30, 2025. It's the 83rd day of the year, sits in Q1, and falls in March. By the end of this week, 89 of 365 days are gone, putting 2025 at 24.4%.
There are no public holidays this week, so all 5 weekdays are working days. Need a different week? Browse the full 2025 week calendar, or jump to this week's number.
Week 13 at a glance
The 7 days of week 13
Every date in week 13 of 2025, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 83 | Weekday | ||
| Tuesday | Day 84 | Weekday | ||
| Wednesday | Day 85 | Weekday | ||
| Thursday | Day 86 | Weekday | ||
| Friday | Day 87 | Weekday | ||
| Saturday | Day 88 | Weekend | ||
| Sunday | Day 89 | Weekend |
What week 13 of 2025 means
ISO 8601 numbers weeks so every week starts on Monday and ends on Sunday. Week 1 is the one holding the year's first Thursday, which is why early January can land in week 52 or 53 of the previous year. Week 13 is one piece of that system.
In 2025, week 13 covers Mar 24 – Mar 30, 2025. That's March, deep in Q1. The same week number shifts by a day or two each year, so week 13 in 2026 won't share these exact dates. The table below shows how it moves.
Want to check a specific date instead of a week number? The week calculator converts any date to its ISO week. Curious how many weeks a year holds? The weeks in a year guide explains 52 versus 53. And the ISO week number page covers the standard end to end.
Holidays in week 13 of 2025
🇬🇧 United Kingdom
Daylight Saving Time — Spring Forward
ObservanceWeek 13 across years
The same ISO week number lands on different dates each year. Here's how week 13 shifts.
| Year | From (Mon) | To (Sun) | Notable | |
|---|---|---|---|---|
| 2024 | Good Friday Easter Sunday | view → | ||
| 2025 THIS YEAR | ||||
| 2026 | view → | |||
| 2027 | view → | |||
| 2028 | view → |
Week 13 of 2025: questions and answers
What days are in week 13 of 2025?
Week 13 of 2025 runs from March 24, 2025 (Monday) through March 30, 2025 (Sunday). It spans March.
What month is week 13 in 2025?
Week 13 of 2025 falls entirely in March 2025.
How many working days are in week 13 of 2025?
Week 13 of 2025 has 5 working days.
What quarter is week 13 of 2025 in?
Week 13 of 2025 is in Q1 (2025). The week starts on day 83 of 365.
What is ISO week 13?
ISO week 13 is defined by the ISO 8601 international standard. It begins on Monday, March 24, 2025, and ends on Sunday, March 30, 2025. It is week 25% through the ISO year 2025.