How many days until December 21?
Countdown to December 21, 2026
63days to go
December 21, 2026 is a Monday — day 355 of 365, week 52. Counting from Monday, October 19, 2026.
December 21 in the years ahead
| Year | Day of the week | Days away |
|---|---|---|
| December 21, 2026 | Monday | 63 |
| December 21, 2027 | Tuesday | 428 |
| December 21, 2028 | Thursday | 794 |
| December 21, 2029 | Friday | 1,159 |
| December 21, 2030 | Saturday | 1,524 |
| December 21, 2031 | Sunday | 1,889 |
About December 21, 2026
December 21 falls on a Monday in 2026. It is the 355th day of the year, which leaves 10 more days in December after it. In the northern hemisphere — the US, Canada, the UK and Ireland — it is winter; in Australia and New Zealand it is summer.
It is also Winter — open that page for the full countdown and the dates in later years.
Questions about December 21
How many days until December 21?
63 days from Monday, October 19, 2026. December 21, 2026 falls on a Monday. The timer above counts the exact hours, minutes and seconds in your own timezone.
How many weeks until December 21?
9 weeks. In whole weeks that is 9, with 0 days left over.
How many weekends and Fridays until December 21?
9 weekends and 9 Fridays — counting from tomorrow up to and including December 21 itself.
How many sleeps until December 21?
63 sleeps. Sleeps count the nights between now and the morning of December 21, which is the same as the number of days.
How many working days until December 21?
45 working days, counting Monday to Friday from tomorrow through December 21. Public holidays are not taken off because they differ by country — see the working days calculator for US and UK holiday counts.
What day of the year is December 21?
December 21, 2026 is the 355th day of the year and sits in ISO week 52.
Nearby dates
Every date in DecemberKeep going