Week 45, 2025

1. Mon3Nov
2. Tue4Nov
3. Wed5Nov
4. Thu6Nov
5. Fri7Nov
6. Sat8Nov
7. Sun9Nov

ISO week

2025-W45

Copy as

CW45 (3–9 Nov)

Quarter

Q4 2025

Weeks in 2025

52

US week number

45

Week 45 is also written KW 45 (Kalenderwoche) or CW 45. 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 3 Nov to Saturday 8 Nov the same number: week 45.