2019 was year 31 of the Heisei (平成) era, from 8 January 1989 to 30 April 2019, and year 1 of the Reiwa (令和) era, from 1 May 2019.
This page can convert a Japanese era date like Meiji 14 into a Western year, or convert a Western year like 1964 into the Japanese era date.
See also the
FAQ page on Japanese years and the
complete list of Japanese eras.