A MONTH OF WAXING AND WANING LIGHT
May 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 |
|---|---|---|---|---|---|
| 5/1 | Waning Gibbous | 99% | 20:30 | 06:33 | |
| 5/2 | Waning Gibbous | 95% | 21:28 | 07:10 | |
| 5/3 | Waning Gibbous | 91% | 22:23 | 07:50 | |
| 5/4 | Waning Gibbous | 84% | 23:15 | 08:33 | |
| 5/5 | Waning Gibbous | 77% | — | 09:20 | |
| 5/6 | Waning Gibbous | 68% | 00:03 | 10:10 | |
| 5/7 | Waning Gibbous | 59% | 00:47 | 11:03 | |
| 5/8 | Last Quarter | 50% | 01:26 | 11:58 | |
| 5/9 | Waning Crescent | 40% | 02:03 | 12:55 | |
| 5/10 | Waning Crescent | 31% | 02:36 | 13:53 | |
| 5/11 | Waning Crescent | 22% | 03:09 | 14:53 | |
| 5/12 | Waning Crescent | 14% | 03:40 | 15:54 | |
| 5/13 | Waning Crescent | 7% | 04:12 | 16:58 | |
| 5/14 | Waning Crescent | 3% | 04:46 | 18:04 | |
| 5/15 | New Moon | 0% | 05:23 | 19:13 | |
| 5/16 | New Moon | 1% | 06:05 | 20:22 | |
| 5/17 | Waxing Crescent | 4% | 06:52 | 21:30 | |
| 5/18 | Waxing Crescent | 10% | 07:47 | 22:35 | |
| 5/19 | Waxing Crescent | 18% | 08:47 | 23:33 | |
| 5/20 | Waxing Crescent | 28% | 09:52 | — | |
| 5/21 | Waxing Crescent | 38% | 10:59 | 00:24 | |
| 5/22 | First Quarter | 50% | 12:06 | 01:09 | |
| 5/23 | Waxing Gibbous | 61% | 13:12 | 01:48 | |
| 5/24 | Waxing Gibbous | 71% | 14:16 | 02:23 | |
| 5/25 | Waxing Gibbous | 80% | 15:19 | 02:56 | |
| 5/26 | Waxing Gibbous | 88% | 16:20 | 03:28 | |
| 5/27 | Waxing Gibbous | 94% | 17:21 | 03:59 | |
| 5/28 | Waxing Gibbous | 98% | 18:20 | 04:33 | |
| 5/29 | Full Moon | 100% | 19:19 | 05:08 | |
| 5/30 | Full Moon | 100% | 20:15 | 05:46 | |
| 5/31 | Waning Gibbous | 98% | 21:09 | 06:28 |
Born in May 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.