Find the moon phase when you were born
Use your birth date, location and time to calculate your birth moon phase and illuminated percentage. If you do not know the time, choose the noon reference for your selected location.
Free
Discover your date
Astronomical calculations: January 1, 1940 to today. Weather: from 1981, where available; recent data may be revised.
Choose a place from the list
Choose a time or select “I don’t know”.
What your birth moon result shows
The illuminated percentage measures how much of the lunar disk appears lit. The phase label distinguishes the waxing and waning parts of the cycle. It describes a phase range and does not claim the exact moment of a full or new moon.
Check the time zone, especially near midnight
Choose the place where the birth occurred so the local date and time can be interpreted correctly. If your time is unknown, the calculation uses local noon. That reference is useful for exploring the date but cannot stand in for an exact birth time.
Turn the date into a keepsake
You can continue to a digital portrait, add names and write a dedication such as “The day our world grew a little brighter”. Review the free preview before ordering. The gift is delivered as PDF files, with Letter and Tabloid among the sizes you can print yourself.
Questions before you choose
Does the calculator explain my personality?
No. It provides astronomical calculations from Astronomy Engine, not a natal chart, zodiac interpretation or compatibility score.
Is the result a NASA photo?
No. We calculate the phase and illumination for dates from 1940 through today; no photograph from your birth date is retrieved.
Your gift by email, ready to print and share.