Moon Calendar — December 2029
The full moon in December 2029 is December 20, 2029 — the Cold Moon. Every day of the month is drawn below with its phase and how much of the disc is lit. Tap any day for that night's detail.
Dates and phases are shown in UTC until the page loads, then in your own time zone.
Primary phases in December 2029
| Phase | When | Name | |
|---|---|---|---|
| New moon | December 5, 202914:52 UTC | ||
| First quarter | December 12, 202917:49 UTC | ||
| Full moon | December 20, 202922:46 UTC | Cold Moon | |
| Last quarter | December 28, 202909:49 UTC |
More moon for December 2029
Phase is the same worldwide, but moonrise and moonset depend on where you are — pick your city for tonight's times. See every phase in 2029, the full moon calendar with traditional names, or the other months. Sunrise and sunset for the same dates are on the sunrise & sunset pages.
When is the full moon in December 2029?
December 20, 2029 at 22:46 UTC — the Cold Moon. The calendar above converts that to your own time zone when it loads, which can move it to the day before or after.
When is the new moon in December 2029?
December 5, 2029 at 14:52 UTC. New moon is the darkest night of the month and the best one for stargazing.
Why does the calendar show a different date than another site?
A moon phase happens at a single instant everywhere on Earth, so the calendar date it lands on depends on your time zone. A full moon at 02:00 UTC is still the previous evening across the Americas. This page shows UTC before its JavaScript runs and your own dates afterwards.
What do the percentages mean?
How much of the moon's disc is lit at midday on that date — 0% at new moon, 100% at full. The shape drawn in each cell is the same figure as a picture.