What did the sky look like the day you were born? Enter a birth date to find your Mayan Day Sign and Galactic Tone, and read what that exact combination means — one of the 260. Plus your Sun sign and the Moon phase that night. No sign-up, nothing stored.
Your birth date
A date is all it takes. The result is date-only — safe to share or bookmark.
The Tzolk’in is the 260-day sacred calendar still kept by Maya day-keepers. Every date lands on one of twenty Day Signs carried by one of thirteen Galactic Tones — together, your kin, a number from 1 to 260. This calculator uses the authentic GMT correlation (584283), the same count a day-keeper reckons by hand. Curious about all twenty? Browse the day signs →
Want the Western half of the same date — the Moon’s phase and how much of it was lit the night you were born? See the sky that night →