What dates are in week 39 of 2026?

Week 39 runs from September 21, 2026 through September 27, 2026.

How many weekdays are in week 39?

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

Exact ISO week dates

Week 39 of 2026

Week 39 of 2026 runs from Monday, September 21, to Sunday, September 27. See every date, weekday count and adjacent ISO weeks.

ISO week 39September 21–September 27, 2026Monday through Sunday · 5 weekdays · 2 weekend days

Upcoming

Dates in week 39

Day	Date	Type
Monday	September 21, 2026	Weekday
Tuesday	September 22, 2026	Weekday
Wednesday	September 23, 2026	Weekday
Thursday	September 24, 2026	Weekday
Friday	September 25, 2026	Weekday
Saturday	September 26, 2026	Weekend
Sunday	September 27, 2026	Weekend

About week 39 of 2026

Week 39 of 2026 runs from Monday, September 21 through Sunday, September 27. It spans September 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.