- 4 Dec, 15:58 Vilnius time: first quarter.
- 12 Dec, 05:20 Vilnius time: full moon, traditionally the Cold Moon.
- 20 Dec, 10:45 Vilnius time: last quarter.
- 27 Dec, 11:08 Vilnius time: new moon.
- During December 2084 the Moon passes through all eight phases. One full cycle takes about 29.5 days.
- The next full moon after this month is on 11 January 2085 (January 2085).
Moon phase times, December 2084
The four principal phases are moments, not whole days. Times are given in UTC and in Europe/Vilnius time.
| Date | Phase | Europe/Vilnius | UTC |
|---|---|---|---|
| Mon 4 Dec | First quarter | 15:58 | 13:58 |
| Tue 12 Dec | Full moon · Cold Moon | 05:20 | 03:20 |
| Wed 20 Dec | Last quarter | 10:45 | 08:45 |
| Wed 27 Dec | New moon | 11:08 | 09:08 |
The sky: December 2084
Planets and sky events this month, as seen in London. The Moon's phases are in the calendar above.
Planets visible (mid-month)
Events
| Sat 9 Dec | The Moon near Mars | About 3.3° apart. Look for Mars next to the Moon. |
| Sun 10 Dec | Mercury and Venus together | Only 1.2° apart: both fit in a binocular field. |
| Mon 11 Dec | Mercury farthest from the Sun | 21° in the morning sky. Look low in the east before sunrise. |
| Tue 12 Dec | Geminids meteor shower peak | Up to 150 meteors an hour in a perfect sky. The Moon is 99% lit: only the brightest meteors will show. |
| Wed 13 Dec | The Moon near Jupiter | About 0.1° apart. Look for Jupiter next to the Moon. |
| Thu 21 Dec | Ursids meteor shower peak | Up to 10 meteors an hour in a perfect sky. The Moon is 37% lit and will hide some fainter meteors. |
| Sun 24 Dec | Mercury and Venus together | 0.0° apart, but not in a dark sky. |
| Tue 26 Dec | The Moon near Venus | About 2.6° apart, but Venus is not visible that night. |
| Tue 26 Dec | The Moon near Mercury | About 2.4° apart, but Mercury is not visible that night. |
| Sun 31 Dec | Jupiter at opposition | The planet is opposite the Sun: it rises at sunset, is up all night and at its brightest of the year. |
How to read the moon calendar
Each day shows its date, the share of the Moon’s disc that is lit at noon, and the Moon’s shape that day. When a full moon, new moon or quarter falls on a day, it is named at the bottom of the cell.
Illumination is the part of the disc lit by the Sun. It grows from new moon to full moon (waxing) and shrinks from full moon to new moon (waning). Each day opens its own page with every signal for that date.
Full moon dates 2084
| Date | Time (UTC) | Traditional name | |
|---|---|---|---|
| Sun 23 Jan | 23:16 | Wolf Moon | next |
| Mon 21 Feb | 16:37 | Snow Moon | |
| Wed 22 Mar | 06:49 | Worm Moon | |
| Thu 20 Apr | 17:53 | Pink Moon | |
| Sat 20 May | 02:37 | Flower Moon | |
| Sun 18 Jun | 10:02 | Strawberry Moon | |
| Mon 17 Jul | 17:02 | Buck Moon | |
| Wed 16 Aug | 00:30 | Sturgeon Moon | |
| Thu 14 Sep | 09:16 | Harvest Moon | |
| Fri 13 Oct | 20:14 | Hunter’s Moon | |
| Sun 12 Nov | 10:11 | Beaver Moon | |
| Tue 12 Dec | 03:20 | Cold Moon |
New moon dates 2084
| Date | Time (UTC) | |
|---|---|---|
| Fri 7 Jan | 17:18 | next |
| Sun 6 Feb | 04:54 | |
| Mon 6 Mar | 17:05 | |
| Wed 5 Apr | 05:53 | |
| Thu 4 May | 19:33 | |
| Sat 3 Jun | 10:14 | |
| Mon 3 Jul | 01:39 | |
| Tue 1 Aug | 17:05 | |
| Thu 31 Aug | 07:46 | |
| Sat 30 Sep | 21:17 | |
| Sun 29 Oct | 09:48 | |
| Mon 27 Nov | 21:40 | |
| Wed 27 Dec | 09:08 |
The eight moon phases explained
Four principal phases are exact instants; the four in between are the days that connect them.
Solar and lunar eclipses in 2084
No eclipse data for 2084.
The waning moon is traditionally a time for finishing
Questions people ask
When is the full moon in December 2084?
The full moon is on 12 December 2084. Its traditional name is the Cold Moon. The exact time is in the table on this page.
When is the new moon in December 2084?
The new moon is on 27 December 2084. The Moon can’t be seen that night: it sits between Earth and the Sun with its lit side turned away.
What do the percentages mean?
They show how much of the Moon’s disc is lit at noon. 0% is new moon, 100% is full moon and 50% is a quarter.
Why does another calendar give a different date?
A phase is a moment. When it falls near midnight, the date can differ by one day between time zones. This calendar uses Europe/Vilnius time for the days.
How often is there a full moon?
About every 29.5 days. Some months have two; the second is called a Blue Moon.
- Jean Meeus, Astronomical Algorithms, 2nd ed., Willmann-Bell, 1998, chapters 48 and 49.
- NASA Eclipse Web Site (eclipse dates and visibility).
Numbers update through the day from public sources. The text for each day is written from that day’s data and checked by the editor. Every past day keeps its own page in the archive.