Moon Phases in December 2028
The dates of the four major moon phases in December 2028:
- Full Moon on December 1 and December 31
- Last Quarter on December 9
- New Moon on December 15
- First Quarter on December 23
The four phases of the moon
A new moon is the first lunar phase that happens about once a month or 29.53 days on average. The moon itself is not visible, though you may be able to “see” it because it blocks the visibility of the stars behind it.
A full moon occurs when the Earth is directly between the Sun and Moon, so that the moon appears completely illuminated. It happens about once a month, or 29.53 days on average.
The first quarter moon occurs between the new moon and full moon, and the last quarter moon occurs after the full moon and before the next new moon.
Moon Phases Calendar for December 2028
All phase dates and times are in the USA Eastern Time adjusted for Daylight Savings Time for part of the year.
December 1
December 9
December 15
December 23
December 31
| Moon Phase | Date | Time | Season |
|---|---|---|---|
| Full Moon December 2028 | December 1 (Friday) | 8:40 p.m. EST | Autumn |
| Last Quarter December 2028 | December 9 (Saturday) | 12:39 a.m. EST | Autumn |
| New Moon December 2028 | December 15 (Friday) | 9:06 p.m. EST | Autumn |
| First Quarter December 2028 | December 23 (Saturday) | 4:45 p.m. EST | Winter |
| Blue Moon December 2028 | December 31 (Sunday) | 11:48 a.m. EST | Winter |