December 21 – December 27, 2026 · 2026-W52 · ~97% through 2026
Week Details
| Week number | 52 |
| Year | 2026 |
| ISO notation | 2026-W52 |
| Start date | Monday, December 21, 2026 |
| End date | Sunday, December 27, 2026 |
| Working days | 5 (Mon–Fri) |
| Year progress | 97% |
Days in This Week
Mon Today
Dec 21 Tue Today
Dec 22 Wed Today
Dec 23 Thu Today
Dec 24 Fri Today
Dec 25 Sat Today
Dec 26 Sun Today
Dec 27 All Weeks of 2026
Week 52 in Other Years
| Year | Start | End |
|---|---|---|
| 2027 | Dec 27, 2027 | Jan 2, 2028 |
Frequently Asked Questions
What dates are in week 52 of 2026?
Week 52 of 2026 starts on Monday, December 21, 2026 and ends on Sunday, December 27, 2026. It contains 5 working days (Monday–Friday) and a 2-day weekend (Saturday–Sunday).
What is the ISO notation for week 52, 2026?
The ISO 8601 week date notation is 2026-W52. Individual days are written as 2026-W52-1 (Monday) through 2026-W52-7 (Sunday).
How far through 2026 is week 52?
Week 52 begins around day 355 of 365, which is approximately 97% through the year.