Weekmark

Calendar week · ISO 8601

Week 49, 2027

Monday 6 December – Sunday 12 December 2027

  1. Mon6Dec
  2. Tue7Dec
  3. Wed8Dec
  4. Thu9Dec
  5. Fri10Dec
  6. Sat11Dec
  7. Sun12Dec
ISO week
2027-W49
Copy as
CW49 (6–12 Dec)
Quarter
Q4 2027
Weeks in 2027
52
US week number
50

Week 49 is also written KW 49 (Kalenderwoche) or CW 49. 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 6 Dec to Saturday 11 Dec a different number: week 50.