Moon Phase Calculator
Find moon phase, age, illumination and next New/Full Moon for a chosen date in U.S. timezones. View the month calendar with moon icons.
This Moon Phase Calculator lets you instantly see the moon phase for any date, along with detailed information such as illumination percentage, moon age, and the exact lunar phase name. Enter a date or browse month-by-month to view a complete lunar calendar featuring clear moon icons for each day. The tool also highlights the dates of the next New Moon, First Quarter, Full Moon, and Last Quarter. It’s ideal for astronomy enthusiasts, photographers, gardeners, anglers, and anyone who plans activities around moon phases. Supporting all major US time zones, this lunar calculator provides accurate and easy-to-read moon data for any day of the year.
Result for 2026-03-25 (New York GMT-04:00)
Next Full Moon: 2026-04-02 02:37
Next New Moon: 2026-05-16 09:43
Disclaimer: This tool uses a simple astronomical approximation suitable for general use. Times are computed using the selected timezone, and daylight saving time is considered for the chosen date. Moon phase calculations are approximate and intended for general, non-critical purposes. Do not rely on them where high precision is required. For mission-critical or highly accurate astronomical needs, consult a professional observatory or astronomy library. See our Terms for more details.