Moon on December 21, 2026
This shows the Moon phase on “December 21” for the selected year — by default the nearest upcoming one. Pick another year with the selector above the timer and the phase updates: the ~29.5-day lunar cycle shifts it slightly from year to year.
Our online timer shows exactly how much time is left until December 21, counting down the days, hours, minutes and seconds.
It doesn't matter if you are waiting for December 21 as your birthday, the start of a vacation, the date of an important event, or just out of interest — our counter will help you track the approach of this moment.
For maximum convenience, the timer can be expanded to the full screen, which is ideal for displaying on a large monitor while preparing or waiting.
Works for free and is available on any device
Use the year selector at the top of the timer to jump to any upcoming year and see exactly how many days, hours, minutes and seconds are left until December 21, along with the day of the week it falls on. The table below shows which weekday December 21 lands on in the coming years.
| Year | Day of the week |
|---|---|
| 2026 | Monday |
| 2027 | Tuesday |
| 2028 | Thursday |
| 2029 | Friday |
| 2030 | Saturday |
| 2031 | Sunday |
| 2032 | Tuesday |
| 2033 | Wednesday |
| 2034 | Thursday |
| 2035 | Friday |
| 2036 | Sunday |
