How many days until December 21?
65days
Monday, 21 December 2026That is 9 weeks and 2 days.
The next December 21 is on a Monday, 65 days from now.
355day of the year
10days left that year
52ISO week number
What day of the week is December 21?
| Year | Weekday |
|---|---|
| 2026 | Monday |
| 2027 | Tuesday |
| 2028 | Thursday |
| 2029 | Friday |
| 2030 | Saturday |
| 2031 | Sunday |
Public holidays on December 21 2026 around the world
In 2026, December 21 is a nationwide public holiday in 2 of the countries in our data.
Anguilla: National Heroes' Day
São Tomé and Príncipe: São Tomé Day
Frequently asked questions
How many days until December 21?
The live countdown at the top of this page shows the exact number of days and weeks. It is calculated from your device's date.
What day of the week is December 21 in 2026?
December 21 2026 is a Monday.
Which day of the year is December 21?
In 2026, December 21 is day 355 of the year, in ISO week 52, with 10 days left in the year. 2026 is not a leap year.
Is December 21 a public holiday?
In 2026 it is a nationwide public holiday in 2 countries in our data; see the list above.