What dates are in week 4 of 2026?

Week 4 runs from January 19, 2026 through January 25, 2026.

How many weekdays are in week 4?

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

Exact ISO week dates

Week 4 of 2026

Week 4 of 2026 runs from Monday, January 19, to Sunday, January 25. See every date, weekday count and adjacent ISO weeks.

ISO week 4January 19–January 25, 2026Monday through Sunday · 5 weekdays · 2 weekend days

Past

Dates in week 4

Day	Date	Type
Monday	January 19, 2026	Weekday
Tuesday	January 20, 2026	Weekday
Wednesday	January 21, 2026	Weekday
Thursday	January 22, 2026	Weekday
Friday	January 23, 2026	Weekday
Saturday	January 24, 2026	Weekend
Sunday	January 25, 2026	Weekend

About week 4 of 2026

Week 4 of 2026 runs from Monday, January 19 through Sunday, January 25. It spans January 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.