Weekmark

Calendar week · ISO 8601

Week 16, 2026

Monday 13 April – Sunday 19 April 2026

  1. Mon13Apr
  2. Tue14Apr
  3. Wed15Apr
  4. Thu16Apr
  5. Fri17Apr
  6. Sat18Apr
  7. Sun19Apr
ISO week
2026-W16
Copy as
CW16 (13–19 Apr)
Quarter
Q2 2026
Weeks in 2026
53
US week number
16

Week 16 is also written KW 16 (Kalenderwoche) or CW 16. 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 13 Apr to Saturday 18 Apr the same number: week 16.