1.
traditional age counting; East Asian age reckoning
A traditional system of counting age in which a person is one year old at birth and gains a year every New Year's Day, rather than on their birthday.
Under this system, a baby is considered one year old (一歳) at birth, and everyone becomes one year older on January 1st (originally based on the lunar new year). This means a person born on December 31st would be considered two years old on the following day.
Common collocations
- 数え年で: in traditional age counting
- 数え年の年齢: age by traditional reckoning
- 数え年で祝う: to celebrate by traditional age
Similar words
- 満年齢: Western-style age — counting from birthday to birthday, which is the standard system in modern Japan
Cultural note
Japan officially switched to the Western age system (満年齢) in 1950, but 数え年 is still used for some traditional events like 厄年 (unlucky years) and 還暦 (60th birthday celebration).
Related Words
Compare:
満年齢 (Western-style age)