Moon calendar, May 2026
The phase for every night of May, computed from the same astronomy the Gibbous app uses. Tap any principal phase below for its exact instant.
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Phases shown for midday UTC each date; the disc you see tonight may differ slightly by hour and hemisphere. In the Southern Hemisphere the lit side appears mirrored.
| Phase | Instant (UTC) | Notes |
|---|---|---|
| Full moon (Flower Moon) | May 1, 2026, 17:21 UTC | |
| Last quarter | May 9, 2026, 21:10 UTC | |
| New moon | May 16, 2026, 20:00 UTC | |
| First quarter | May 23, 2026, 11:10 UTC | |
| Full moon (Blue Moon) | May 31, 2026, 08:44 UTC | Blue moon |
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