Weekmark

Calendar week · ISO 8601

Week 18, 2028

Monday 1 May – Sunday 7 May 2028

  1. Mon1May
  2. Tue2May
  3. Wed3May
  4. Thu4May
  5. Fri5May
  6. Sat6May
  7. Sun7May
ISO week
2028-W18
Copy as
CW18 (1–7 May)
Quarter
Q2 2028
Weeks in 2028
52
US week number
19

Week 18 is also written KW 18 (Kalenderwoche) or CW 18. 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 1 May to Saturday 6 May a different number: week 19.