Exact ISO week dates

Week 13 of 2026

Week 13 of 2026 runs from Monday, March 23, to Sunday, March 29. See every date, weekday count and adjacent ISO weeks.

ISO week 13March 23–29, 2026Monday through Sunday · 5 weekdays · 2 weekend days
Past

Week 13 at a glance

ISO code2026-W13
Calendar spanMarch
QuarterQ1 2026
Day of year82–88

Dates in week 13

DayDateType
MondayWeekday
TuesdayWeekday
WednesdayWeekday
ThursdayWeekday
FridayWeekday
SaturdayWeekend
SundayWeekend

About week 13 of 2026

Week 13 of 2026 runs from March 23, 2026 through March 29, 2026. It covers March 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.

Week 13 in other years