Weekmark

Calendar week · ISO 8601

Week 33, 2025

Monday 11 August – Sunday 17 August 2025

  1. Mon11Aug
  2. Tue12Aug
  3. Wed13Aug
  4. Thu14Aug
  5. Fri15Aug
  6. Sat16Aug
  7. Sun17Aug
ISO week
2025-W33
Copy as
CW33 (11–17 Aug)
Quarter
Q3 2025
Weeks in 2025
52
US week number
33

Week 33 is also written KW 33 (Kalenderwoche) or CW 33. 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 11 Aug to Saturday 16 Aug the same number: week 33.