December 2025 Calendar
December 2025 starts on a Monday and ends on a Wednesday. It has 31 days, of which 23 are weekdays (Monday to Friday), and covers ISO weeks 49 to 1.
Show holidays:
December 2025
| Wk | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 49 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 50 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 51 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 52 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 1 | 29 | 30 | 31 | 1 | 2 | 3 | 4 |
United States: holidays in December 2025
- Christmas Eve · observance Wednesday, December 24
- Christmas Day Thursday, December 25
- New Year's Eve · observance Wednesday, December 31
United Kingdom: holidays in December 2025
- St Andrew's Day (Scotland) Sunday, November 30 · day off Mon, Dec 1
- Christmas Day Thursday, December 25
- Boxing Day Friday, December 26
Canada: holidays in December 2025
- Christmas Day Thursday, December 25
- Boxing Day (Federal, ON (optional elsewhere)) Friday, December 26
Australia: holidays in December 2025
- Christmas Day Thursday, December 25
- Boxing Day (All (Proclamation Day in SA)) Friday, December 26
Week numbers follow ISO 8601. See all week numbers for 2025 or count the working days in a period.