Waning · 82.0% lit · ♍︎ Virgo 00°
Moon age
19.5days
Moon phase on December 31, 2099Waning Gibbous
On Thursday, December 31, 2099, the Moon will be a Waning Gibbous: 82.0% of its visible face lit, 19.5 days after the new moon and shrinking each night.
82.0%Illumination at noon UTC
19.5 dMoon age
372,367 km231,378 mi from Earth
♍︎ VirgoMoon sign (0°)
32.1′Apparent size (arcmin)
WaningLit on the left (N. Hemisphere)
Nearest moon phases
The nearest full moon to December 31, 2099 is on Sunday, December 27, 2099 at 12:58 UTC, 4 days earlier, and the nearest new moon is on Sunday, January 10, 2100 at 12:56 UTC, 10 days later.
| Phase | Date | Time (UTC) |
|---|---|---|
| Full Moon (before) | Sunday, December 27, 2099 | 12:58 |
| Last Quarter (after) | Sunday, January 3, 2100 | 13:03 |
The Moon around December 31
More about this date
Thursday, December 31, 2099 falls in the lunar cycle that runs from the new moon of December 11, 2099 to the new moon of January 10, 2100, a cycle of 29.57 days.
- See every phase of the month in the moon phases in December 2099, or the whole moon calendar 2099.
- The same date one year apart: 2098 · 2100.
- 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.