What dates are in week 51 of 2026?

Week 51 runs from December 14, 2026 through December 20, 2026.

How many weekdays are in week 51?

There are five Monday-to-Friday weekdays before country-specific public holidays are excluded.

Exact ISO week dates

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–December 20, 2026Monday through Sunday · 5 weekdays · 2 weekend days

Upcoming

Dates in week 51

Day	Date	Type
Monday	December 14, 2026	Weekday
Tuesday	December 15, 2026	Weekday
Wednesday	December 16, 2026	Weekday
Thursday	December 17, 2026	Weekday
Friday	December 18, 2026	Weekday
Saturday	December 19, 2026	Weekend
Sunday	December 20, 2026	Weekend

About week 51 of 2026

Week 51 of 2026 runs from Monday, December 14 through Sunday, December 20. It spans 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.