Weekmark

Calendar week · ISO 8601

Week 2, 2026

Monday 5 January – Sunday 11 January 2026

  1. Mon5Jan
  2. Tue6Jan
  3. Wed7Jan
  4. Thu8Jan
  5. Fri9Jan
  6. Sat10Jan
  7. Sun11Jan
ISO week
2026-W02
Copy as
CW2 (5–11 Jan)
Quarter
Q1 2026
Weeks in 2026
53
US week number
2

Week 2 is also written KW 2 (Kalenderwoche) or CW 2. 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 5 Jan to Saturday 10 Jan the same number: week 2.