Birthdays
What the sky did on your birthday
Every day of the year: your sun's exact degree, the moon's real sign, the day's phase. Computed, not copied.
By the diosa astrologers · Computed on Swiss Ephemeris · Updated 2026-08-27
Most birthday pages tell you a sun sign and call it astrology. The sky on your birthday is richer than one label: the sun has an exact degree, the moon has a real position and phase, and all of it can be computed and checked. Here is every day of the year, computed on Swiss Ephemeris, with the generation date stamped.
A note on honesty: the moon sign shown is exact for noon UTC. The moon moves half a degree per hour, so if it changed sign that day, your birth time decides which side you were born on. The birthday page tells you when that applies.
January
February
March
April
May
June
July
August
September
October
November
December
FAQ
Is my moon sign really the same for everyone born on my birthday?
It can be. The moon spends about two and a half days in each sign, so everyone born in that window shares it, at least within a timezone or two. Birthday pages here print the exact moon position at noon UTC and flag when the moon changed sign that day.
Why doesn't the birthday page include my rising sign?
The rising sign changes roughly every two hours and depends on your birth place, so it can't be computed from a date alone. Cast your free chart with your birth time and place to get it.