Civil & Historical

Japanese

Reign-era years · current era Reiwa

The Gregorian calendar with years counted by imperial era (nengō): each reign begins a new era at year 1 — Heisei from 1989, Reiwa from 2019.

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In UTC at 02:02 on October 27, 2026, this calendar read October 27, 8 Reiwa. The reading above is live, in your own time zone.

At a glance

Type: Solar — the Gregorian year, numbered by imperial era
Origin: Japan adopted the Gregorian calendar in 1873; era names (nengō) go back to 645
Year: 365 days, or 366 in a leap year, from 1 January
Months: 12 — the Gregorian months, numbered rather than named
Week: 7 days, named for the sun, the moon and five elements
Leap rule: The Gregorian rule
Counts from: Each emperor’s accession — a new reign begins a new era at year 1
Where it’s used: Official documents in Japan, beside the Gregorian year
How it’s worked out here: Your browser’s own calendar data (ICU), in your time zone