Calendar

Moons, seasons and feasts. Choose a day to read it.

A number counts that day’s events. An underline marks a retrograde.

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Wednesday, December 31

88% illuminated
11.4 days since new moon

Jupiter retrograde

Nov 11, 2025, 4:44 PM UTC – Mar 11, 2026, 3:26 AM UTC

Jupiter appears to move backward from Earth between these dates.

Read this day’s sky

11.4 days since new moon

BeganDec 20, 1:44 AM UTC

Next new moonJan 18, 7:52 PM UTC

18.3 days remain of 29.8.

First QuarterDec 27, 7:10 PM UTC
Full MoonJan 3, 10:03 AM UTC
Last QuarterJan 10, 3:49 PM UTC
New MoonJan 18, 7:52 PM UTC

Layers

Sky eventsLunar phases & eclipsesEquinoxes & solsticesPlanetary stationsRetrograde periodsSign changesExact aspects

Tradition calendarsThelemic feastsIslamic · tabular estimatesChristian · Gregorian

7 events shown. Tradition layers are a selection, not a full calendar.

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Calendar files use the layers you chose, in UTC.

Year

December 2025

UTC

November 11, 2025

Jupiter retrograde

Nov 11, 2025, 4:44 PM UTC – Mar 11, 2026, 3:26 AM UTC. Jupiter appears to move backward from Earth between these dates.

December 4, 2025

Full Moon in Gemini

11:14 PM UTC

December 11, 2025

Last Quarter Moon in Virgo

8:52 PM UTC

December 20, 2025

New Moon in Sagittarius

1:44 AM UTC

December 21, 2025

December solstice

3:03 PM UTC

Rituals of the Elements and Feasts of the Times

3:03 PM UTC. Thelemic feasts kept at each equinox and solstice.

December 27, 2025

First Quarter Moon in Aries

7:10 PM UTC

How times are calculated

Sky events are calculated for your time zone; station times are estimates. Islamic dates are tabular: a local sighting can differ. Easter follows church tables.

Sources: retrograde motion ↗, Moon phases ↗, Islamic calendar ↗, Thelemic feasts ↗.