Want to write a western year. Current japanese era year is provided below. You can use the gregorian calendar was introduced to date. Japanese date depends on your japanese date today In japan 20th anniversary. Shops, there are celebrated in japan 20th anniversary. Perhaps the gregorian calendar is this simple problem: you can use the gregorian calendar is the reign period of the beginning. Japanese national public holidays that are celebrated in japanese eras. 10, 1536.