December 2026 Moon Phase Calendar
Updated · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)
The daily phase and illumination below are sampled at 8:00 p.m. Eastern Time. Principal phases are exact astronomical instants. Moonrise is for New York City and may occur on a different local date elsewhere.
May 2027 Moon Phase Calendar — 13-month
Gregorian dates: April 23, 2027 – May 20, 2027.
Switching keeps the reference date, May 1, 2027. Weekday headings follow the fixed calendar, not Gregorian weekdays. Each month has four complete weeks; Sol sits between June and July. The detail tables below keep their stated Gregorian date ranges.
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
 90.1%April 23
|
83.5%April 24
|
75.8%April 25
|
 67.2%April 26
|
58.1%April 27
|
48.7%April 28
Last Quarter 4:17 p.m. EDT
|
39.2%April 29
|
 30%April 30
|
21.4%May 1
|
13.7%May 2
|
7.4%May 3
|
 2.8%May 4
|
0.5%May 5
|
0.6%May 6
New Moon 6:58 a.m. EDT
|
|
3.3%May 7
|
 8.7%May 8
|
16.3%May 9
|
25.8%May 10
|
 36.6%May 11
|
47.9%May 12
|
59.2%May 13
First Quarter 12:43 a.m. EDT
|
|
69.8%May 14
|
 79.3%May 15
|
87.3%May 16
|
93.5%May 17
|
 97.6%May 18
|
99.6%May 19
|
99.5%May 20
Full Moon 6:58 a.m. EDT
|
Daily phase names group the cycle into eight broad phase sectors, using progress between exact astronomical events. They describe the 8 p.m. Eastern sample, not the instant of a new moon, quarter moon, or full moon. The tables list those exact principal-phase instants separately.
December 2026 Moon Phases — Exact Times
| Phase | Date | Time (ET) | Time (UTC) | 13 month date |
|---|---|---|---|---|
| Last Quarter | 1:08 a.m. EST | 6:08 a.m. UTC | November 27, 2026 | |
| New Moon | 7:51 p.m. EST | 12:51 a.m. UTC | December 6, 2026 | |
| First Quarter | 12:42 a.m. EST | 5:42 a.m. UTC | December 15, 2026 | |
| Full Moon | 8:28 p.m. EST | 1:28 a.m. UTC | December 21, 2026 | |
| Last Quarter | 1:59 p.m. EST | 6:59 p.m. UTC | December 28, 2026 |
Special events and calculation notes
- : Supermoon (geocentric distance <= 360,000 km)
Eclipse classifications are from NASA GSFC. On this site, “supermoon” means a full moon with a computed geocentric distance of 360,000 km or less.
Daily Moon Phase, Illumination, and Moonrise
“No moonrise” means no rise occurs during that midnight-to-midnight Eastern calendar date at the New York City observer location; it does not mean the moon never rises.