Birthday Profile
Explore your birth date through its weekday, zodiac, Japanese era, original color, Moon phase, seasonal terms, notable people, and more.
Your input is not sent to a server. All processing is performed locally in your browser.
Enter your birthday
Dates from January 1, 1900 through today are supported.
Basic profile
- Weekday
- Japanese era
- Zodiac animal
- Western zodiac
The zodiac animal is based on the Gregorian calendar year.
Birthday
Birthstone
Birth-month flowers
Birthday Coloryayao.site original
Birthday Color is a yayao.site original color generated deterministically from your month and day. It is not a traditional or fortune-telling birth-color system.
Sky & season
- Moon phase
- Moon age
- days
- Phase angle
- Illumination
Moon information could not be calculated.
Moon information is calculated as a reference for 12:00 JST on the selected birth date.
- 24 solar term
- 72 kō
The 72 kō is a reference based on 5° intervals of solar longitude; dates can vary by calendar or source.
View this date in the 24 Solar Terms Finder →People born on the same date
No people are recorded for this date.
Notable events on this date
Time since birth
- Days lived
- days
- Days until next birthday
- days
- Next birthday
How to use
- Enter your date of birth in the Gregorian calendar.
- Select Show profile to view the information associated with that date.
- Use View my life timeline to continue with the same date of birth.
What the profile shows
The profile includes the weekday, date-accurate Japanese era, Gregorian-year zodiac animal, conventional Western zodiac sign, age, days lived, and next birthday. The zodiac animal follows the Gregorian calendar year rather than Lunar New Year.
About birthstones
Birthstones follow the modern monthly list used by Jewelers of America. They are monthly associations, not daily stones or claims about effects.
About birth-month flowers
There is no single worldwide standard for birth-month flowers, and associations vary by culture and source. This tool shows representative monthly examples based on The Old Farmer’s Almanac.
About Western zodiac signs
Western zodiac date ranges are conventional approximations and can vary slightly by source. This tool does not calculate astronomical solar longitude or use a birth time.
Birthday Color
The color is generated by mapping the month and day to an ordinal in leap year 2000 and applying a fixed yayao.site formula. The same month and day always produce the same color, regardless of birth year. It is not fortune-telling or a traditional birth-color system.
Moon and season
Moon phase and age are calculated with Astronomy Engine for 12:00 JST on the birth date. The 24 solar terms and 72 kō reuse the site’s solar-longitude calculation as a reference. The details link transfers the date once via same-tab sessionStorage, never in the URL.
People born on the same date
People are shown from a static dataset prepared from Wikidata structured data. Displaying the list makes no external request; an external page opens only when you select a Wikidata link.
Privacy
Your date of birth is not sent anywhere. Calculations and event filtering happen in your browser. Moving to the timeline or solar-term finder uses only sessionStorage in the same tab, never the URL or localStorage.
FAQ
Are birth flowers assigned to every date?
This tool shows representative flowers for each month, not a flower for each day. There is no single worldwide standard.
Which birthstone list is used?
The profile follows the modern monthly birthstone list used by Jewelers of America.
How is February 29 handled?
In non-leap years, February 28 is used when calculating the next birthday.
Is my birth date sent to a server?
No. Input and calculations stay entirely in your browser.