Astronomy
Moon Phases for September 2031
Primary lunar phases are calculated for UTC. Local dates can shift near midnight.
| Phase | UTC date | UTC time | Source |
|---|---|---|---|
| Full Moon | 2031-09-01 | 09:21 | astronomy-engine@2.1.19 |
| Last Quarter | 2031-09-08 | 16:14 | astronomy-engine@2.1.19 |
| New Moon | 2031-09-16 | 18:47 | astronomy-engine@2.1.19 |
| First Quarter | 2031-09-24 | 01:20 | astronomy-engine@2.1.19 |
| Full Moon | 2031-09-30 | 18:58 | astronomy-engine@2.1.19 |