Date facts
Saturday, December 13, 2025
December 13, 2025 is day 347 of 365, in ISO week 50. There are 18 days left in 2025 after this date.
Weekday
Saturday
Calendar weekday
Day of year
347
of 365
ISO week
50
Week-year 2025
Days remaining
18
In 2025
Weeks start on Monday and use ISO week numbers. Saturday is week 50 of 2025.