A MONTH OF WAXING AND WANING LIGHT
September 2018 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 | Waning Gibbous | 71% | 22:24 | 11:15 | |
| 9/2 | Waning Gibbous | 61% | 23:03 | 12:18 | |
| 9/3 | Last Quarter | 50% | 23:48 | 13:22 | |
| 9/4 | Waning Crescent | 39% | — | 14:26 | |
| 9/5 | Waning Crescent | 28% | 00:40 | 15:28 | |
| 9/6 | Waning Crescent | 18% | 01:39 | 16:26 | |
| 9/7 | Waning Crescent | 10% | 02:45 | 17:18 | |
| 9/8 | Waning Crescent | 4% | 03:55 | 18:05 | |
| 9/9 | New Moon | 1% | 05:07 | 18:46 | |
| 9/10 | New Moon | 0% | 06:19 | 19:24 | |
| 9/11 | Waxing Crescent | 3% | 07:28 | 19:59 | |
| 9/12 | Waxing Crescent | 8% | 08:36 | 20:33 | |
| 9/13 | Waxing Crescent | 15% | 09:42 | 21:07 | |
| 9/14 | Waxing Crescent | 23% | 10:45 | 21:43 | |
| 9/15 | Waxing Crescent | 32% | 11:46 | 22:21 | |
| 9/16 | Waxing Crescent | 42% | 12:45 | 23:01 | |
| 9/17 | Waxing Gibbous | 52% | 13:40 | 23:46 | |
| 9/18 | Waxing Gibbous | 61% | 14:31 | — | |
| 9/19 | Waxing Gibbous | 70% | 15:18 | 00:33 | |
| 9/20 | Waxing Gibbous | 78% | 16:01 | 01:24 | |
| 9/21 | Waxing Gibbous | 86% | 16:40 | 02:18 | |
| 9/22 | Waxing Gibbous | 92% | 17:15 | 03:13 | |
| 9/23 | Waxing Gibbous | 96% | 17:48 | 04:10 | |
| 9/24 | Waxing Gibbous | 99% | 18:19 | 05:08 | |
| 9/25 | Full Moon | 100% | 18:49 | 06:06 | |
| 9/26 | Waning Gibbous | 99% | 19:19 | 07:06 | |
| 9/27 | Waning Gibbous | 96% | 19:51 | 08:06 | |
| 9/28 | Waning Gibbous | 90% | 20:25 | 09:08 | |
| 9/29 | Waning Gibbous | 83% | 21:02 | 10:12 | |
| 9/30 | Waning Gibbous | 74% | 21:45 | 11:16 |
Born in September 2018?
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.