Week 51 of 2026
Week 51 of 2026 runs from Monday, December 14, to Sunday, December 20. See every date, weekday count and adjacent ISO weeks.
ISO week 51December 14–20, 2026Monday through Sunday · 5 weekdays · 2 weekend days
Upcoming
Week 51 at a glance
ISO code2026-W51
Calendar spanDecember
QuarterQ4 2026
Day of year348–354
Dates in week 51
| Day | Date | Type |
|---|---|---|
| Monday | Weekday | |
| Tuesday | Weekday | |
| Wednesday | Weekday | |
| Thursday | Weekday | |
| Friday | Weekday | |
| Saturday | Weekend | |
| Sunday | Weekend |
About week 51 of 2026
Week 51 of 2026 runs from December 14, 2026 through December 20, 2026. It covers December and contains five standard Monday-to-Friday weekdays.
Public holidays are country-specific and are not removed from this basic weekday count. Use the working-days calculator when holidays need to be excluded.