Waning · 78.9% lit · ♌︎ Leo 24°
Moon age
20.0days
Moon phase on December 21, 2100Waning Gibbous
On Tuesday, December 21, 2100, the Moon will be a Waning Gibbous: 78.9% of its visible face lit, 20.0 days after the new moon and shrinking each night.
78.9%Illumination at noon UTC
20.0 dMoon age
387,340 km240,682 mi from Earth
♌︎ LeoMoon sign (25°)
30.8′Apparent size (arcmin)
WaningLit on the left (N. Hemisphere)
Nearest moon phases
The nearest full moon to December 21, 2100 is on Thursday, December 16, 2100 at 17:00 UTC, 5 days earlier, and the nearest new moon is on Thursday, December 30, 2100 at 23:56 UTC, 9 days later.
| Phase | Date | Time (UTC) |
|---|---|---|
| Full Moon (before) | Thursday, December 16, 2100 | 17:00 |
| Last Quarter (after) | Friday, December 24, 2100 | 08:46 |
The Moon around December 21
More about this date
Tuesday, December 21, 2100 falls in the lunar cycle that runs from the new moon of December 1, 2100 to the new moon of December 30, 2100, a cycle of 29.46 days.
- See every phase of the month in the moon phases in December 2100, or the whole moon calendar 2100.
- The same date one year apart: 2099 · 2101.
- Born on this day? The moon phase on your birthday tool adds your birth time and your moon sign.
- Phases change by time zone: this page uses Coordinated Universal Time (UTC). Learn how to read the phases of the moon.