December 2025 calendar
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December 2025 begins on a Monday and ends on a Wednesday: 31 days, 23 weekdays and 8 weekend days. Mondays, Tuesdays and Wednesdays come round five times this month.
December is two calendars at once — finishing this year and printing the next. The following year’s pages are one link away below, and they carry the same computed facts as this one.
December 2025 in numbers
| Days | 31 |
|---|---|
| Working days | 23 (Monday to Friday, before holidays) |
| Working days after US holidays | 22 |
| Weekend days | 8 |
| First day | Monday, December 1, 2025 |
| Last day | Wednesday, December 31, 2025 |
| ISO weeks | 49–1 |
Working days in December 2025
December 2025 has 23 weekdays. Nationwide public holidays that land on one of them take it back, so the count depends on the country:
| Country | Holidays on weekdays | Working days |
|---|---|---|
| United States | Christmas Day (Thursday 25) | 22 |
| United Kingdom | Christmas Day (Thursday 25), Boxing Day (Friday 26) | 21 |
| Canada | Christmas Day (Thursday 25) | 22 |
| Australia | Christmas Day (Thursday 25), Boxing Day (Friday 26) | 21 |
Regional holidays — a state day in the US, Scotland's own bank holidays — are not subtracted. The linked pages carry the month-by-month table for the whole of 2025.
Week by week
ISO week numbers, which the calendar can print down the margin. Weeks at either end of the month reach into the months beside it; the dates below are the part that falls inside December.
| Week | Dates in December | Days |
|---|---|---|
| Week 49 | December 1–7 | 7 |
| Week 50 | December 8–14 | 7 |
| Week 51 | December 15–21 | 7 |
| Week 52 | December 22–28 | 7 |
| Week 1 | December 29–31 | 3 |
Days of the week in December 2025
Every date of the month by weekday — for checking whether a date falls at the weekend, or how many Mondays and Fridays there are to plan around.
| Weekday | Dates in December |
|---|---|
| Sunday | December 7, 14, 21, 28 |
| Monday | December 1, 8, 15, 22, 29 |
| Tuesday | December 2, 9, 16, 23, 30 |
| Wednesday | December 3, 10, 17, 24, 31 |
| Thursday | December 4, 11, 18, 25 |
| Friday | December 5, 12, 19, 26 |
| Saturday | December 6, 13, 20, 27 |
United States holidays in December 2025
| Date | Day | Holiday |
|---|---|---|
| December 25 | Thursday | Christmas Day |
United States holidays are shown because that is what the generator opens with. The holiday country is a separate setting from the calendar language, so you can mark United Kingdom, Canadian or Australian holidays instead, choose from over two hundred other countries, or turn the holiday layer off entirely.
Moon phases in December 2025
| Date | Phase |
|---|---|
| December 4 | Full moon |
| December 11 | Last quarter |
| December 20 | New moon |
| December 27 | First quarter |
Dates are UTC. Switch on Moon phases in the generator to have these printed on the calendar itself.
This month in other languages
- diciembre 2025 — Español
- dezembro 2025 — Português
- décembre 2025 — Français
- Dezember 2025 — Deutsch
- dicembre 2025 — Italiano
- december 2025 — Nederlands
- grudzień 2025 — Polski
- Aralık 2025 — Türkçe
- december 2025 — Svenska
- Desember 2025 — Bahasa Indonesia