How old am I (at that time)?
Calculates your age today or at that time using both chronological age and Japanese age.
| Age in years (full age) | Years |
| Counting age | Years |
| --------------------------------------------- (Details)--------------------------------------------- | |
| Number of days since birth | Years, months, Day |
| = | Day |
| Until the next birthday | Day (Days remaining) |
・Under the full-age system, a person is considered 0 years old at birth and turns 1 year old at the end of the day before their birthday the following year.
・Under the traditional Japanese age system, a person is considered 1 year old at birth and ages one year on each January 1.
・Input using the Japanese calendar is available starting from the January 1, Meiji 6 (1873), when the Gregorian calendar was adopted.
・The pop-up calendar is available starting from 1582-10-15, when the Gregorian calendar was adopted.
・Under the traditional Japanese age system, a person is considered 1 year old at birth and ages one year on each January 1.
・Input using the Japanese calendar is available starting from the January 1, Meiji 6 (1873), when the Gregorian calendar was adopted.
・The pop-up calendar is available starting from 1582-10-15, when the Gregorian calendar was adopted.
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