Moon Calendar — January 2023
The Moon's zodiac sign for every day of January 2023, with sign-change times and all four phases — computed from real planetary positions. Times are UTC.
The Moon in January 2023
In January 2023 the Moon changes zodiac sign 13 times and passes through all 12 signs. It starts the month in Taurus on January 1 and ends it in Gemini on January 31. Counting the sign it occupies at noon UTC each day, it spends the most days in Gemini (5 days), Taurus (4 days) and Leo (3 days).
The main lunar phases this month are: Full Moon on January 6 in Cancer, Last Quarter on January 15 in Libra, New Moon on January 21 in Aquarius and First Quarter on January 28 in Taurus.
For context: the Moon circles the zodiac in about 27.3 days, so it usually stays in one sign for roughly 2 to 2.5 days before moving on. Its phases follow the longer synodic month of about 29.5 days — the time from one new moon to the next — which is why each phase lands on a different date every month. All times here are UTC, so a sign change or phase near midnight may fall on the neighboring date in your time zone.
Moon sign by day
| Date | Moon in | Sign change (UTC) |
|---|---|---|
| Sun, Jan 1 | Taurus | — |
| Mon, Jan 2 | Taurus | — |
| Tue, Jan 3 | Gemini | Taurus → Gemini ~3:00 |
| Wed, Jan 4 | Gemini | — |
| Thu, Jan 5 | Gemini | Gemini → Cancer ~15:00 |
| Fri, Jan 6 | Cancer | — |
| Sat, Jan 7 | Cancer | — |
| Sun, Jan 8 | Leo | Cancer → Leo ~3:00 |
| Mon, Jan 9 | Leo | — |
| Tue, Jan 10 | Leo | Leo → Virgo ~16:00 |
| Wed, Jan 11 | Virgo | — |
| Thu, Jan 12 | Virgo | — |
| Fri, Jan 13 | Libra | Virgo → Libra ~3:00 |
| Sat, Jan 14 | Libra | — |
| Sun, Jan 15 | Libra | Libra → Scorpio ~13:00 |
| Mon, Jan 16 | Scorpio | — |
| Tue, Jan 17 | Scorpio | Scorpio → Sagittarius ~18:00 |
| Wed, Jan 18 | Sagittarius | — |
| Thu, Jan 19 | Sagittarius | Sagittarius → Capricorn ~20:00 |
| Fri, Jan 20 | Capricorn | — |
| Sat, Jan 21 | Capricorn | Capricorn → Aquarius ~19:00 |
| Sun, Jan 22 | Aquarius | — |
| Mon, Jan 23 | Aquarius | Aquarius → Pisces ~18:00 |
| Tue, Jan 24 | Pisces | — |
| Wed, Jan 25 | Pisces | Pisces → Aries ~19:00 |
| Thu, Jan 26 | Aries | — |
| Fri, Jan 27 | Aries | Aries → Taurus ~23:00 |
| Sat, Jan 28 | Taurus | — |
| Sun, Jan 29 | Taurus | — |
| Mon, Jan 30 | Gemini | Taurus → Gemini ~9:00 |
| Tue, Jan 31 | Gemini | — |