Black Moon dates and meaning
Compare monthly, seasonal and no-new-Moon-in-month Black Moon rules, using calendar boundaries in your time zone.
Next dates under your selected rule
| Event | Local time | Details |
|---|---|---|
| Monthly | 31 August 2027 at 17:41 UTC | Second new Moon in a month |
| Seasonal | 20 August 2028 at 10:44 UTC | Third of four in a season |
| Month without new Moon | 2033-02 | UTC |
2026 Black Moons
No Black Moon under the selected rule occurs in 2026 in UTC.
Monthly Black Moon means the second new Moon in one local calendar month. Seasonal Black Moon means the third new Moon in an astronomical season containing four. A third usage names a month with no new Moon, which can occur in February. These are different naming rules.