A MONTH OF WAXING AND WANING LIGHT
December 2020 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 |
|---|---|---|---|---|---|
| 12/1 | Full Moon | 100% | 17:51 | 08:00 | |
| 12/2 | Waning Gibbous | 97% | 18:37 | 08:59 | |
| 12/3 | Waning Gibbous | 93% | 19:29 | 09:54 | |
| 12/4 | Waning Gibbous | 87% | 20:27 | 10:45 | |
| 12/5 | Waning Gibbous | 79% | 21:30 | 11:30 | |
| 12/6 | Waning Gibbous | 70% | 22:36 | 12:10 | |
| 12/7 | Waning Gibbous | 60% | 23:43 | 12:45 | |
| 12/8 | Waning Crescent | 49% | — | 13:17 | |
| 12/9 | Waning Crescent | 38% | 00:51 | 13:47 | |
| 12/10 | Waning Crescent | 27% | 02:00 | 14:17 | |
| 12/11 | Waning Crescent | 17% | 03:10 | 14:48 | |
| 12/12 | Waning Crescent | 9% | 04:23 | 15:23 | |
| 12/13 | Waning Crescent | 3% | 05:38 | 16:03 | |
| 12/14 | New Moon | 0% | 06:53 | 16:50 | |
| 12/15 | New Moon | 0% | 08:05 | 17:44 | |
| 12/16 | Waxing Crescent | 3% | 09:10 | 18:45 | |
| 12/17 | Waxing Crescent | 8% | 10:06 | 19:51 | |
| 12/18 | Waxing Crescent | 15% | 10:53 | 20:57 | |
| 12/19 | Waxing Crescent | 23% | 11:31 | 22:02 | |
| 12/20 | Waxing Crescent | 32% | 12:03 | 23:04 | |
| 12/21 | Waxing Crescent | 42% | 12:31 | — | |
| 12/22 | Waxing Gibbous | 51% | 12:57 | 00:03 | |
| 12/23 | Waxing Gibbous | 61% | 13:21 | 01:01 | |
| 12/24 | Waxing Gibbous | 70% | 13:46 | 01:58 | |
| 12/25 | Waxing Gibbous | 78% | 14:11 | 02:55 | |
| 12/26 | Waxing Gibbous | 85% | 14:39 | 03:52 | |
| 12/27 | Waxing Gibbous | 91% | 15:11 | 04:51 | |
| 12/28 | Waxing Gibbous | 96% | 15:48 | 05:50 | |
| 12/29 | Waxing Gibbous | 99% | 16:32 | 06:50 | |
| 12/30 | Full Moon | 100% | 17:22 | 07:47 | |
| 12/31 | Waning Gibbous | 99% | 18:20 | 08:40 |
Born in December 2020?
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.