December 2027 Calendar
Updated November 6, 2026 · Edited by the JanuaryCalendar.com team
December 2027 starts on Wednesday, December 1, and ends on Friday, December 31. It has 31 days, 23 weekdays and 21 US working days. US federal holidays: Christmas Day (Sat, Dec 25; observed Fri, Dec 24); New Year's Day 2028 observed (Fri, Dec 31).
- Starts
- Wednesday
- Days
- 31
- US working days
- 21
- Full moon
- Dec 13
- Birthstone
- Turquoise
- Zodiac
- Sagittarius, Capricorn
December 2027
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| 5 | 6First Quarter | 7 | 8 | 9 | 10 | 11 |
| 12 | 13Full Moon | 14 | 15 | 16 | 17 | 18 |
| 19 | 20Last Quarter | 21 | 22 | 23 | 24Christmas (observed)Christmas Eve | 25Christmas |
| 26 | 27New Moon | 28 | 29 | 30 | 31New Year's Day (observed)New Year's Eve |
- Dec 6◐ First Quarter, 12:22 a.m. EST
- Dec 13○ Full Moon, 11:09 a.m. EST
- Dec 20◑ Last Quarter, 4:11 a.m. EST
- Dec 24Christmas Day (observed)
- Dec 24Christmas Eve
- Dec 25Christmas Day
- Dec 27Christmas Day (substitute day) (UK)
- Dec 27● New Moon, 3:12 p.m. EST
- Dec 28Boxing Day (substitute day) (UK)
- Dec 31New Year's Day (observed)
- Dec 31New Year's Eve
December 2027 holidays and observances
| Date | Day | Holiday or observance | Notes |
|---|---|---|---|
| Dec 24 | Fri | Christmas Eve | Observance |
| Dec 25 | Sat | Christmas Day | Federal holiday; observed Fri, Dec 24 |
| Dec 27 | Mon | Christmas Day (substitute day) (UK) | UK |
| Dec 28 | Tue | Boxing Day (substitute day) (UK) | UK |
| Dec 31 | Fri | New Year's Day 2028 (observed) | Federal offices closed; January 1 is a Saturday |
| Dec 31 | Fri | New Year's Eve | Observance |
Dates follow federal rules (a holiday on Saturday is observed Friday, on Sunday the following Monday). UK bank holidays follow standard rules; one-off extra holidays are announced by the government.
Moon phases
| Phase | Date (Eastern) | Time (ET) | Time (UTC) |
|---|---|---|---|
| ◐ First Quarter | Monday, December 6 | 12:22 a.m. EST | Dec 06, 05:22 UTC |
| ○ Full Moon | Monday, December 13 | 11:09 a.m. EST | Dec 13, 16:09 UTC |
| ◑ Last Quarter | Monday, December 20 | 4:11 a.m. EST | Dec 20, 09:11 UTC |
| ● New Moon | Monday, December 27 | 3:12 p.m. EST | Dec 27, 20:12 UTC |
Calculated with standard astronomical algorithms; Eastern Time.
Working days
December 2027 has 21 working days in the US: 23 weekdays minus 2 federal holidays on a weekday. Wednesday, Thursday and Friday occur five times.
| Weekday | Count |
|---|---|
| Sunday | 4 |
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 5 |
| Thursday | 5 |
| Friday | 5 |
| Saturday | 4 |
Week numbers
| ISO week | Dates |
|---|---|
| Week 48 | Dec 1 – 5 |
| Week 49 | Dec 6 – 12 |
| Week 50 | Dec 13 – 19 |
| Week 51 | Dec 20 – 26 |
| Week 52 | Dec 27 – 31 |
Printable December 2027 calendar
Free for personal, classroom and office use. See all printable calendars.
Frequently asked questions
How many days are in December 2027?
December 2027 has 31 days. It starts on a Wednesday and ends on a Friday.
How many working days are in December 2027?
December 2027 has 21 US working days (23 weekdays minus federal holidays).
What federal holidays are in December 2027?
Christmas Day (Sat, Dec 25; observed Fri, Dec 24); New Year's Day 2028 observed (Fri, Dec 31).
When is the full moon in December 2027?
The full moon is on Monday, December 13, 2027 at 11:09 a.m. EST.
What is the December birthstone and zodiac sign?
The December birthstone is turquoise. People born Dec 1–21 are Sagittarius; those born Dec 22–31 are Capricorn.