A MONTH OF WAXING AND WANING LIGHT
December 2021 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 | Waning Crescent | 14% | 03:24 | 15:09 | |
| 12/2 | Waning Crescent | 7% | 04:36 | 15:41 | |
| 12/3 | Waning Crescent | 2% | 05:51 | 16:19 | |
| 12/4 | New Moon | 0% | 07:10 | 17:04 | |
| 12/5 | Waxing Crescent | 1% | 08:27 | 17:59 | |
| 12/6 | Waxing Crescent | 5% | 09:39 | 19:03 | |
| 12/7 | Waxing Crescent | 12% | 10:40 | 20:14 | |
| 12/8 | Waxing Crescent | 20% | 11:30 | 21:26 | |
| 12/9 | Waxing Crescent | 30% | 12:10 | 22:37 | |
| 12/10 | Waxing Crescent | 40% | 12:43 | 23:44 | |
| 12/11 | First Quarter | 51% | 13:11 | — | |
| 12/12 | Waxing Gibbous | 61% | 13:36 | 00:47 | |
| 12/13 | Waxing Gibbous | 70% | 14:00 | 01:48 | |
| 12/14 | Waxing Gibbous | 79% | 14:24 | 02:48 | |
| 12/15 | Waxing Gibbous | 86% | 14:50 | 03:46 | |
| 12/16 | Waxing Gibbous | 92% | 15:18 | 04:45 | |
| 12/17 | Waxing Gibbous | 96% | 15:49 | 05:45 | |
| 12/18 | Waxing Gibbous | 99% | 16:26 | 06:44 | |
| 12/19 | Full Moon | 100% | 17:09 | 07:42 | |
| 12/20 | Waning Gibbous | 99% | 17:58 | 08:36 | |
| 12/21 | Waning Gibbous | 97% | 18:52 | 09:25 | |
| 12/22 | Waning Gibbous | 92% | 19:51 | 10:09 | |
| 12/23 | Waning Gibbous | 86% | 20:53 | 10:46 | |
| 12/24 | Waning Gibbous | 79% | 21:55 | 11:19 | |
| 12/25 | Waning Gibbous | 70% | 22:58 | 11:49 | |
| 12/26 | Waning Gibbous | 60% | — | 12:16 | |
| 12/27 | Last Quarter | 50% | 00:02 | 12:42 | |
| 12/28 | Waning Crescent | 39% | 01:07 | 13:08 | |
| 12/29 | Waning Crescent | 28% | 02:14 | 13:37 | |
| 12/30 | Waning Crescent | 19% | 03:25 | 14:10 | |
| 12/31 | Waning Crescent | 10% | 04:40 | 14:50 |
Born in December 2021?
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.