Weekmark

Calendar week · ISO 8601

Week 52, 2027

Monday 27 December 2027 – Sunday 2 January 2028

  1. Mon27Dec
  2. Tue28Dec
  3. Wed29Dec
  4. Thu30Dec
  5. Fri31Dec
  6. Sat1Jan
  7. Sun2Jan
ISO week
2027-W52
Copy as
CW52 (27 Dec – 2 Jan)
Quarter
Q4 2027
Weeks in 2027
52
US week number
1 of 2028

Week 52 is also written KW 52 (Kalenderwoche) or CW 52. 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 27 Dec to Saturday 1 Jan a different number: week 1 of 2028.