Weekmark

Calendar week · ISO 8601

Week 15, 2027

Monday 12 April – Sunday 18 April 2027

  1. Mon12Apr
  2. Tue13Apr
  3. Wed14Apr
  4. Thu15Apr
  5. Fri16Apr
  6. Sat17Apr
  7. Sun18Apr
ISO week
2027-W15
Copy as
CW15 (12–18 Apr)
Quarter
Q2 2027
Weeks in 2027
52
US week number
16

Week 15 is also written KW 15 (Kalenderwoche) or CW 15. 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 12 Apr to Saturday 17 Apr a different number: week 16.