December 2027 calendar
31 days23 weekdaysStarts on WednesdayISO weeks 48–52
| Wk | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 48 | |||||||
| 49 | |||||||
| 50 | |||||||
| 51 | |||||||
| 52 |
December 2027 in numbers
- Days
- 31
- Weekdays (Mon–Fri)
- 23
- Weekend days
- 8
- First and last day
- Wednesday – Friday
- First and last working day
- Wed, Dec 1 – Fri, Dec 31
- Week numbers
- 48–52
- Day of the year
- 335–365
- Quarter
- Q4 2027
- Islamic months (computed)
- Rajab – Sha'ban 1449 AH
With 31 days, December 2027 has four full weeks plus 3 extra days, so Wednesday, Thursday and Friday occur five times; every other weekday occurs four times. It has 8 weekend days and 23 weekdays.
December 1 is day 335 of the year, so December 2027 covers day numbers 335 to 365. In the Umm al-Qura Islamic calendar, 1 Sha'ban 1449 AH falls on December 29 (computed; where months begin with the sighting of the new crescent, the start can differ by a day).
Public holidays in December 2027
| Date | Holiday | Where |
|---|---|---|
| Mon, Dec 6 | Constitution Day | Spain |
| Wed, Dec 8 | Immaculate Conception | Spain |
| Thu, Dec 16 | Day of Reconciliation | South Africa |
| Fri, Dec 24 | Christmas Day (observed) | United States (federal) |
| Fri, Dec 24 | Christmas Eve (6pm to midnight) | Australia: Queensland |
| Sat, Dec 25 | Christmas Day | Canada (federal), Australia (national), Australia: New South Wales, Australia: Queensland, Australia: Western Australia, Ireland, South Africa, Singapore, Hong Kong, France, Spain |
| Sun, Dec 26 | Boxing Day | Canada (federal), Australia (national), Australia: New South Wales, Australia: Queensland, Australia: Western Australia |
| Sun, Dec 26 | Saint Stephen's Day | Ireland |
| Mon, Dec 27 | Christmas Day (substitute day) | UK: England and Wales, UK: Scotland, UK: Northern Ireland |
| Mon, Dec 27 | Christmas Day (additional day) | Australia: New South Wales, Australia: Queensland, Australia: Western Australia |
| Mon, Dec 27 | Christmas Day (Mondayised) | New Zealand |
| Mon, Dec 27 | Day of Goodwill (substitute day) | South Africa |
| Mon, Dec 27 | The first weekday after Christmas Day | Hong Kong |
| Tue, Dec 28 | Boxing Day (substitute day) | UK: England and Wales, UK: Scotland, UK: Northern Ireland |
| Tue, Dec 28 | Boxing Day (additional day) | Australia: New South Wales, Australia: Queensland, Australia: Western Australia |
| Tue, Dec 28 | Boxing Day (Mondayised) | New Zealand |
National holidays of the 17 sets we take from official government sources; see public holidays by country for regional days and sources. Where a holiday that falls on a weekend moves to a weekday, the table shows the day off.
Other dates in December 2027
- Fri, Dec 24: Christmas EveDecember 24
- Sat, Dec 25: Hanukkah (first day)25 Kislev; the first candle is lit the evening before
- Fri, Dec 31: New Year’s EveDecember 31
Days that many people keep but that are not public holidays in our 17 sets, each from its fixed rule. Jewish dates begin at sunset the evening before; Islamic dates follow the Umm al-Qura calendar and are announced locally.
Clock changes and seasons
- Wed, Dec 22: December solstice02:42 UTC
Clock changes from IANA tzdata as the rules stand today. Equinox and solstice times are the US Naval Observatory’s, in UTC.