Astronomy
Moon Phases for December 2031
Primary lunar phases are calculated for UTC. Local dates can shift near midnight.
| Phase | UTC date | UTC time | Source |
|---|---|---|---|
| Last Quarter | 2031-12-07 | 03:20 | astronomy-engine@2.1.19 |
| New Moon | 2031-12-14 | 09:06 | astronomy-engine@2.1.19 |
| First Quarter | 2031-12-21 | 00:01 | astronomy-engine@2.1.19 |
| Full Moon | 2031-12-28 | 17:33 | astronomy-engine@2.1.19 |