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When is week 42?

Week 42 of 2026: Oct 12 – Oct 18

Mon, Oct 12 – Sun, Oct 18, 2026

It starts in 12 days.

Week 42 by year

ISO week 42, 2024–2032
YearMondaySunday
2024Mon, Oct 14Sun, Oct 20
2025Mon, Oct 13Sun, Oct 19
2026Mon, Oct 12Sun, Oct 18
2027Mon, Oct 18Sun, Oct 24
2028Mon, Oct 16Sun, Oct 22
2029Mon, Oct 15Sun, Oct 21
2030Mon, Oct 14Sun, Oct 20
2031Mon, Oct 13Sun, Oct 19
2032Mon, Oct 11Sun, Oct 17

More week numbers

Frequently asked questions

When is week 42 of 2026?

From Monday, October 12, 2026 to Sunday, October 18, 2026.

How many days until week 42?

12 days, counting from today to Monday, the first day of the week.

Why can week 1 start in December?

ISO week 1 is the week containing the year's first Thursday, so it can begin as early as December 29 of the previous year.