Week 21, 2025
ISO-8601 Standard Week
Week 21 of 2025 runs from May 19, 2025 to May 25, 2025, and 2025 has 52 weeks in total.
This week is already in the past. See the full 2025 calendar, or learn why some years have 53 weeks.
Starts On
Monday
May 19, 2025
Ends On
Sunday
May 25, 2025
This week marks approximately 38% of the year 2025 passed.
May 2025 Calendar
| Week | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 18 | 28 | 29 | 30 | 1 | 2 | 3 | 4 |
| 19 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 20 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 21 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 22 | 26 | 27 | 28 | 29 | 30 | 31 | 1 |
Holidays in Week 21
All Weeks in 2025
Week 21 in Other Years
Compare dates and holidays for week 21 across different years:
About Week 21
Week 21 of 2025 is a standard business week consisting of 7 days. It follows the ISO-8601 convention where Monday is the first day of the week.
Working Days
In most countries, this week contains 5 working days (Monday, May 19 to Friday, May 23) and a standard 2-day weekend.