What day of the week is December 21?
December 21, 2026 is a Monday
82 days from today
It is the 3rd Monday of December.
Showing the next December 21 on or after today, Wednesday, September 30, 2026, in your time zone.
December 21 by year
| Year | Day of the week | Weekday or weekend |
|---|---|---|
| 2024 | Saturday | Weekend |
| 2025 | Sunday | Weekend |
| 2026 | Monday | Weekday |
| 2027 | Tuesday | Weekday |
| 2028 | Thursday | Weekday |
| 2029 | Friday | Weekday |
| 2030 | Saturday | Weekend |
| 2031 | Sunday | Weekend |
| 2032 | Tuesday | Weekday |
About December 21, 2026
- It is a Monday, a weekday.
- Day 355 of 365, in ISO week 52 of 2026 and quarter Q4.
- On this date: Winter.
Public holidays on December 21, 2026 around the world
1 country or territory has a nationwide public holiday on December 21, 2026:
- São Tomé Day — Sao Tome and Principe
This date elsewhere
Frequently asked questions
What day of the week is December 21, 2026?
It's a Monday, the 3rd Monday of December.
Is December 21, 2026 on a weekend?
No, it is a Monday, a weekday.
What day is December 21 in 2027?
December 21, 2027 falls on a Tuesday.