2025 Calendar End. It has 52 weeks and starts on wednesday, january 1st 2025. Lent for the year 2025 starts on wednesday, march 5th and ends on thursday, april 17 with evening mass on holy thursday.

The following table shows all iso calendar weeks 2025 from 1 to 53, with their start date beginning on monday and their end date falling on sunday. Plan your year with our 2025 calendar featuring all major us holidays.