A MONTH OF WAXING AND WANING LIGHT
September 1990 Moon phase calendar
Daily phase and illumination values use a Korea-time reference. Exact major phase moments are in Korea Standard Time (KST); moonrise and moonset below use Seoul as a reference location.
Major phase times
Which time zone does this calendar use?
Each major phase happens at the same instant worldwide. The cards show that instant in KST (UTC+9) and UTC; your local calendar date may be different. This month’s events are grouped by their KST date.
Daily phase and illumination are sampled at noon KST (03:00 UTC). Moonrise and moonset are for Seoul, not your current location. For local rise and set times, choose your location in Moonrise and moonset tonight.
Find the Moon on your birthday →Daily Moon phase
Select a date for its detailed Moon view.
| Date | Moon | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|---|
| 9/1 | Waxing Gibbous | 84% | 16:47 | 01:38 | |
| 9/2 | Waxing Gibbous | 90% | 17:22 | 02:41 | |
| 9/3 | Waxing Gibbous | 96% | 17:53 | 03:46 | |
| 9/4 | Waxing Gibbous | 99% | 18:21 | 04:53 | |
| 9/5 | Full Moon | 100% | 18:48 | 06:00 | |
| 9/6 | Waning Gibbous | 98% | 19:15 | 07:07 | |
| 9/7 | Waning Gibbous | 95% | 19:44 | 08:16 | |
| 9/8 | Waning Gibbous | 88% | 20:16 | 09:28 | |
| 9/9 | Waning Gibbous | 80% | 20:53 | 10:41 | |
| 9/10 | Waning Gibbous | 70% | 21:38 | 11:54 | |
| 9/11 | Waning Gibbous | 59% | 22:31 | 13:05 | |
| 9/12 | Waning Crescent | 47% | 23:33 | 14:10 | |
| 9/13 | Waning Crescent | 36% | — | 15:06 | |
| 9/14 | Waning Crescent | 26% | 00:41 | 15:53 | |
| 9/15 | Waning Crescent | 17% | 01:51 | 16:31 | |
| 9/16 | Waning Crescent | 9% | 03:01 | 17:03 | |
| 9/17 | Waning Crescent | 4% | 04:09 | 17:31 | |
| 9/18 | Waning Crescent | 1% | 05:14 | 17:57 | |
| 9/19 | New Moon | 0% | 06:17 | 18:22 | |
| 9/20 | Waxing Crescent | 1% | 07:19 | 18:47 | |
| 9/21 | Waxing Crescent | 5% | 08:21 | 19:13 | |
| 9/22 | Waxing Crescent | 10% | 09:22 | 19:42 | |
| 9/23 | Waxing Crescent | 16% | 10:23 | 20:16 | |
| 9/24 | Waxing Crescent | 24% | 11:22 | 20:54 | |
| 9/25 | Waxing Crescent | 32% | 12:20 | 21:38 | |
| 9/26 | Waxing Crescent | 41% | 13:12 | 22:29 | |
| 9/27 | First Quarter | 50% | 14:00 | 23:25 | |
| 9/28 | Waxing Gibbous | 60% | 14:42 | — | |
| 9/29 | Waxing Gibbous | 69% | 15:18 | 00:26 | |
| 9/30 | Waxing Gibbous | 78% | 15:51 | 01:29 |
Born in September 1990?
Choose your birth date to see that day’s Moon in 3D and make a card you can share.
Moonrise and moonset are astronomical calculations for Seoul and may differ from your location or visible horizon. Weather and local obstructions are not included.