Birthday Moon Phase Calculator

Enter a birth date, and a birth time if you know it, to see the moon's phase that day, how much of it was lit and the zodiac sign it stood in. New, quarter and full moon birthdays show the exact time, and full moons get their folk name or a Blue Moon flag. Each result also gives its lunation type from Dane Rudhyar's eight-phase cycle. Share the result as a link or open that month on the moon phase calendar. Free, no signup, runs in your browser.