Date facts
Monday, December 1, 2025
December 1, 2025 is day 335 of 365, in ISO week 49. There are 30 days left in 2025 after this date.
Weekday
Monday
Calendar weekday
Day of year
335
of 365
ISO week
49
Week-year 2025
Days remaining
30
In 2025
Weeks start on Monday and use ISO week numbers. Monday is week 49 of 2025.