How many days until December 21?
How many days until December 21? The countdown below shows the days, hours, minutes and seconds left until December 21 begins at midnight in your time zone. In the Northern Hemisphere it lands in winter, and it is the 355th day of the year (the 356th in leap years).
Counting down to December 21
The wait time for December 21, unit by unit
How many days until December 21?
–How many weeks until December 21?
–How many weekdays until December 21?
–How many weekend days until December 21?
–How many months until December 21?
–How many hours until December 21?
–How many minutes until December 21?
–How many seconds until December 21?
–Days are calendar days from today. Weekdays (Monday to Friday) and weekend days count the full days between today and December 21.
December 21 at a glance
- Day of the year
- 355th (356th in leap years)
- Next one falls on
- –
- Season (Northern Hemisphere)
- Winter
- Quarter
- Q4
- Days in December
- 31
- Holiday
- None fixed to this date
December 21 in the coming years
| Year | Day of the week |
|---|---|
| December 21, 2026 | Monday |
| December 21, 2027 | Tuesday |
| December 21, 2028 | Thursday |
| December 21, 2029 | Friday |
| December 21, 2030 | Saturday |
Count down to another time or date
Countdowns to nearby dates
Other days in December
More dates to count down to
Days of the week
Questions about December 21
When does the countdown to December 21 end?
At 12:00 AM on December 21 in your time zone, the moment the date begins. If today is December 21, it counts to December 21 next year instead.
Are today and December 21 included in the day count?
The main day count is the number of calendar days from today's date to December 21. The weekday and weekend counts cover only the full days in between.
What day of the year is December 21?
December 21 is the 355th day of the year (the 356th in leap years).