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 19–25, 2026Monday through Sunday · 5 weekdays · 2 weekend days
Past
Week 4 at a glance
ISO code2026-W04
Calendar spanJanuary
QuarterQ1 2026
Day of year19–25
Dates in week 4
| Day | Date | Type |
|---|---|---|
| Monday | Weekday | |
| Tuesday | Weekday | |
| Wednesday | Weekday | |
| Thursday | Weekday | |
| Friday | Weekday | |
| Saturday | Weekend | |
| Sunday | Weekend |
About week 4 of 2026
Week 4 of 2026 runs from January 19, 2026 through January 25, 2026. It covers 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.