Days Until December 21
Countdown timer with days, hours, minutes, and calendar facts.
Calculate📅 Day of the Week Lookup
What Day of the Week is December 21?
In 2026, December 21 falls on a Monday.
Calculate Day of Week for Any Date
How many days until…?
46
Days Until
Monday
Monday, December 21, 2026
6w 4dWeeks & Days
6Total Weeks
1 monthsApprox. Months
1,104Total Hours
From: November 5, 2026To: Monday, December 21, 2026
Winter Solstice
December 21 marks the astronomical Winter Solstice in the Earth's annual orbital cycle around the Sun.
Day of the Week for December 21 (2024–2035)
Planning ahead for a future anniversary, wedding, birthday, or holiday? Here is the exact day of the week that December 21 falls on for each year from 2024 to 2035:
| Year | Day of the Week | Classification | Leap Year? |
|---|---|---|---|
| 2024 | Saturday | Weekend | Yes (366 days) |
| 2025 | Sunday | Weekend | No (365 days) |
| 2026Upcoming | Monday | Weekday | No (365 days) |
| 2027 | Tuesday | Weekday | No (365 days) |
| 2028 | Thursday | Weekday | Yes (366 days) |
| 2029 | Friday | Weekday | No (365 days) |
| 2030 | Saturday | Weekend | No (365 days) |
| 2031 | Sunday | Weekend | No (365 days) |
| 2032 | Tuesday | Weekday | Yes (366 days) |
| 2033 | Wednesday | Weekday | No (365 days) |
| 2034 | Thursday | Weekday | No (365 days) |
| 2035 | Friday | Weekday | No (365 days) |
Calendar Facts for December 21
Day of the Year
Day 355
10 days remain until the new year.
Zodiac Sign
♐ Sagittarius
Western astrological sign for this date.
Season & Quarter
❄️ Q4
Winter (Quarter 4 of the calendar year).
Annual Calendar Elapsed Progress97% of Year
By December 21, 355 of 365 calendar days have concluded (10 days remaining until January 1).
All December Day-of-Week Lookups
December Countdowns →Frequently Asked Questions
What day of the week is December 21, 2026?
December 21, 2026 falls on a Monday (weekday).
How many days until December 21?
There are 46 days (6 weeks and 4 days) until December 21 (Monday, December 21, 2026).
Why does December 21 change days of the week each year?
A common calendar year has 365 days (52 weeks + 1 day), so dates advance by one day of the week every standard year. In leap years (366 days = 52 weeks + 2 days), dates after February 28 leap forward by two days.
What season and astrological sign is December 21?
December 21 is in Winter (Quarter 4 of the year) and falls under the zodiac sign of ♐ Sagittarius. It is also the astronomical date of the Winter Solstice.
How much of the calendar year has passed by December 21?
By December 21, day 355 of the year has arrived, meaning 97% of the calendar year is complete, with 10 days remaining until January 1.
When is the next weekend December 21?
The next time December 21 falls on a weekend will be in 2030 (on a Saturday).