Moon Phase

First Quarter Moon September 2026

Friday, September 18, 2026 · US Eastern

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48 days untilSeptember 18 dateFriday weekday

The First Quarter Moon is on Friday, September 18, 2026. This countdown updates live to the second in US Eastern (ET) time. Track every full moon, new moon and quarter moon with ByBanker.

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Times shown in US Eastern (America/New_York) unless a zone is specified.