Week 26 of 2025
June 23 – June 29, 2025
| Monday | June 23, 2025 | Mon · week starts |
| Tuesday | June 24, 2025 | |
| Wednesday | June 25, 2025 | |
| Thursday | June 26, 2025 | |
| Friday | June 27, 2025 | |
| Saturday | June 28, 2025 | |
| Sunday | June 29, 2025 | Sun · week ends |
All weeks of 2025
2025 is an ISO year with 52 weeks.
About ISO week 26 of 2025
ISO 8601 weeks start on Monday and end on Sunday. Week 26 of 2025 begins on Monday, June 23, 2025 and ends on Sunday, June 29, 2025. Week numbering follows the international standard: week 1 of a year is the week containing the first Thursday of January, which is why some calendar dates near January 1st belong to the previous or next ISO year.
The ISO week system is the standard for business reporting across Europe and much of the world. The US convention differs: weeks start on Sunday and week 1 contains January 1st, so US week numbers can be one ahead of or behind ISO numbers near year boundaries.
Frequently asked questions
What dates are in week 26 of 2025?
Week 26 of 2025 spans June 23 – June 29, 2025: Monday June 23 through Sunday June 29.
When is week 26 of 2025?
Week 26 of 2025 started 491 days ago, on Monday, June 23, 2025.
Why does 2025 have 52 weeks?
2025 has the usual 52 ISO weeks. Only years starting on a Thursday (or a Wednesday in a leap year) get a 53rd week.