December 2026
31 daysStarts Tuesday, ends Thursday22 working days8 weekend daysISO weeks 49–53
| ISO week | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|---|
| 49 | |||||||
| 50 | |||||||
| 51 | |||||||
| 52 | |||||||
| 53 |
Holidays in December
- Christmas EveThu, Dec 24 · Federal
- Christmas DayFri, Dec 25 · Federal
- New Year's EveThu, Dec 31 · Federal
Federal holidays from 5 U.S.C. §6103, plus widely kept US observances. 2 religious dates fall in December 2026 as well — see the calendar with every holiday.
Moon phases
- Last QuarterTue, Dec 1, 1:08 AM
- New MoonWed, Dec 9, 7:51 PM
- First QuarterThu, Dec 17, 12:42 AM
- Full MoonThu, Dec 24, 8:28 PM
- Last QuarterWed, Dec 30, 1:59 PM
Times in US Eastern. Computed from Meeus, Astronomical Algorithms, ch. 49.
The moon through December
- 1
- 3
- 5
- 7
- 9
- 11
- 13
- 15
- 17
- 19
- 21
- 23
- 25
- 27
- 29
- 31
About December 2026
December 2026 has 31 days. It begins on a Tuesday and ends on a Thursday, which gives the month five Tuesdays, Wednesdays and Thursdays — and only four of every other weekday. Of its 23 weekdays, 1 is a federal holiday, leaving 22 working days.
Christmas Eve falls on Thursday, December 24, 2026. Christmas Day falls on Friday, December 25, 2026. New Year's Eve falls on Thursday, December 31, 2026.
The December solstice falls on Monday, December 21, 2026, the 21st of the month.
The month runs from Tuesday, December 1, 2026 to Thursday, December 31, 2026, spanning ISO weeks 49 to 53.