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DateAlmanac

December 2026

  • 31 days
  • Starts Tuesday
  • Ends Thursday
  • 22 working days
  • 8 weekend days
  • ISO weeks 49–53
Calendar grid for 12/2026, weeks starting Sun
ISO week number, Monday to Sunday
49
50
51
52
53

Holiday or observanceWeekend

Holidays in December

  • Christmas EveDec 24
  • Christmas DayDec 25
  • New Year's EveDec 31

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 quarter

    Tue, Dec 1

    1:08 AM ET

  • New moon

    Tue, Dec 8

    7:51 PM ET

  • First quarter

    Thu, Dec 17

    12:42 AM ET

  • Full moon

    Wed, Dec 23

    8:28 PM ET

  • Last quarter

    Wed, Dec 30

    1:59 PM ET

Times in US Eastern. Computed from Meeus, Astronomical Algorithms, ch. 49.

The moon through December

  1. 1
  2. 3
  3. 5
  4. 7
  5. 9
  6. 11
  7. 13
  8. 15
  9. 17
  10. 19
  11. 21
  12. 23
  13. 25
  14. 27
  15. 29
  16. 31
The moon every other evening, drawn at its true illumination. The terminator is a semi-ellipse, not a straight edge — it only looks straight at the quarters.

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.

The December solstice falls on Monday, December 21, 2026, the 21st of the month.

2026 at a glance

Calendar with holidaysPrintable versionDownload PDFFull year 2026