Short answer
Current calendar week
The current week is calculated for Europe/Berlin under ISO 8601.
Weeks run from Monday to Sunday, and the ISO week-year can differ from the calendar year around New Year.
Current week number
CW 42
12 October 202618 October 2026
Today: Sunday, 18 October 2026
Reliable ISO calculation
Every result follows the ISO 8601 week date: Monday is day 1 and week 1 contains the year's first Thursday.
- ISO week-year
- 2026
- Monday to Sunday
- 12/10/2026 – 18/10/2026
- Method checked
- 5 August 2026