Week 50, 2026

1. Mon7Dec
2. Tue8Dec
3. Wed9Dec
4. Thu10Dec
5. Fri11Dec
6. Sat12Dec
7. Sun13Dec

ISO week

2026-W50

Copy as

CW50 (7–13 Dec)

Quarter

Q4 2026

Weeks in 2026

53

US week number

50

Week 50 is also written KW 50 (Kalenderwoche) or CW 50. ISO weeks start on Monday, and week 1 is the week with the year’s first Thursday. US calendars start weeks on Sunday and count the week with 1 January as week 1, so they give Monday 7 Dec to Saturday 12 Dec the same number: week 50.