Moon Calendar — May 2021
The Moon's zodiac sign for every day of May 2021, with sign-change times and all four phases — computed from real planetary positions. Times are UTC.
The Moon in May 2021
In May 2021 the Moon changes zodiac sign 13 times and passes through all 12 signs. It starts the month in Capricorn on May 1 and ends it in Aquarius on May 31. Counting the sign it occupies at noon UTC each day, it spends the most days in Capricorn (4 days), Aquarius (4 days) and Aries (3 days).
The main lunar phases this month are: Last Quarter on May 3 in Aquarius, New Moon on May 11 in Taurus, First Quarter on May 19 in Leo and Full Moon on May 26 in Sagittarius.
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.
Phases in May 2021
Moon sign by day
| Date | Moon in | Sign change (UTC) |
|---|---|---|
| Sat, May 1 | Capricorn | — |
| Sun, May 2 | Capricorn | Capricorn → Aquarius ~20:00 |
| Mon, May 3 | Aquarius | — |
| Tue, May 4 | Aquarius | — |
| Wed, May 5 | Pisces | Aquarius → Pisces ~3:00 |
| Thu, May 6 | Pisces | — |
| Fri, May 7 | Aries | Pisces → Aries ~12:00 |
| Sat, May 8 | Aries | — |
| Sun, May 9 | Aries | Aries → Taurus ~23:00 |
| Mon, May 10 | Taurus | — |
| Tue, May 11 | Taurus | — |
| Wed, May 12 | Taurus | Taurus → Gemini ~13:00 |
| Thu, May 13 | Gemini | — |
| Fri, May 14 | Gemini | — |
| Sat, May 15 | Cancer | Gemini → Cancer ~2:00 |
| Sun, May 16 | Cancer | — |
| Mon, May 17 | Cancer | Cancer → Leo ~13:00 |
| Tue, May 18 | Leo | — |
| Wed, May 19 | Leo | Leo → Virgo ~21:00 |
| Thu, May 20 | Virgo | — |
| Fri, May 21 | Virgo | — |
| Sat, May 22 | Libra | Virgo → Libra ~2:00 |
| Sun, May 23 | Libra | — |
| Mon, May 24 | Scorpio | Libra → Scorpio ~4:00 |
| Tue, May 25 | Scorpio | — |
| Wed, May 26 | Sagittarius | Scorpio → Sagittarius ~3:00 |
| Thu, May 27 | Sagittarius | — |
| Fri, May 28 | Capricorn | Sagittarius → Capricorn ~3:00 |
| Sat, May 29 | Capricorn | — |
| Sun, May 30 | Aquarius | Capricorn → Aquarius ~5:00 |
| Mon, May 31 | Aquarius | — |