Weekmark

Calendar week · ISO 8601

Week 3, 2028

Monday 17 January – Sunday 23 January 2028

  1. Mon17Jan
  2. Tue18Jan
  3. Wed19Jan
  4. Thu20Jan
  5. Fri21Jan
  6. Sat22Jan
  7. Sun23Jan
ISO week
2028-W03
Copy as
CW3 (17–23 Jan)
Quarter
Q1 2028
Weeks in 2028
52
US week number
4

Week 3 is also written KW 3 (Kalenderwoche) or CW 3. 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 17 Jan to Saturday 22 Jan a different number: week 4.