Www Calendar 12 Com Moon Calendar 2025 January. A synodic month is about 29.53 days on average, resulting in 12 or 13 full moons per calendar year, depending on how the lunar schedule aligns. The name of a current phase, an approximate percent of an illuminated surface of the moon visible from the earth,.

All phase dates and times are in the usa eastern time. 20 rows discover our 2025 interactive calendar with all key dates and holidays.