Weekmark

Calendar week · ISO 8601

Week 27, 2025

Monday 30 June – Sunday 6 July 2025

  1. Mon30Jun
  2. Tue1Jul
  3. Wed2Jul
  4. Thu3Jul
  5. Fri4Jul
  6. Sat5Jul
  7. Sun6Jul
ISO week
2025-W27
Copy as
CW27 (30 Jun – 6 Jul)
Quarter
Q3 2025
Weeks in 2025
52
US week number
27

Week 27 is also written KW 27 (Kalenderwoche) or CW 27. 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 30 Jun to Saturday 5 Jul the same number: week 27.