Phase To Date Calculator
Pick a moon phase and find the next date that phase happens.
Next occurrence
Saturday, September 26, 2026
About 11 days from now.
About the Phase To Date Calculator
The phase to date calculator is a free online lunar calculator that gives you an accurate answer in seconds. Pick a moon phase and find the next date that phase happens. Just pick a date and the calculator does the rest, using the same astronomy math NASA uses to track the moon.
People also search for this as a phase to date, next phase date, moon phase finder. Whatever you call it, this moon calculator is built to be fast, accurate, and easy to use on any phone or computer. There is no sign up, no download, and no cost — just open the page, type your date, and read the answer.
Every number on this page comes from a real moon phase calculation engine. That means the moon phase, the moon age, the illumination percent, and the moon distance are all computed from the same formulas used in astronomy textbooks. You can trust the result for school projects, sky watching plans, or simple curiosity about the night sky.
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