Jt Age

3 min read Jul 11, 2024
Jt Age

What is JT Age?

JT Age is a term used to describe the age of a person in the Japanese calendar. This calendar, known as the Japanese Imperial Era, is based on the reign of the current emperor.

Understanding JT Age

  • The current era is known as Reiwa, which began on May 1, 2019.
  • Prior to Reiwa, the era was Heisei, which lasted from 1989 to 2019.
  • Before Heisei was the Showa era, which lasted from 1926 to 1989.

For example:

  • A person born in 1985 would be considered 2 years old in the Heisei era.
  • This same person would be 38 years old in the Reiwa era.

JT Age vs. Western Age

JT Age is not the same as the Western age that is commonly used in most of the world. Western age is calculated based on the Gregorian calendar, which is the most widely used calendar globally.

While both JT Age and Western age use the same system of counting years, they start from different points in time. Western age starts from the date of birth, whereas JT Age starts from the beginning of the current Japanese Imperial Era.

Significance of JT Age

JT Age is still widely used in Japan and is often used in official documents, news articles, and everyday conversation. It is considered a significant part of Japanese culture and helps people understand their place in the historical timeline of Japan.

Example of Usage

"The new prime minister is 55 years old in Reiwa." This means that the prime minister was born during the Heisei era and is 55 years old from the beginning of the Reiwa era.


JT Age is a unique aspect of Japanese culture that helps people understand the historical context of their lives. While it may seem confusing at first, understanding JT Age can provide valuable insights into Japanese society and culture.