Which Gregorian year is 昭和4年?

昭和4年 is Gregorian year 1929 (1926 + 4 − 1).
Japanese era
昭和4年
Gregorian year
1929
Era start
1926-12-25
Era end
1989-01-07
Facts on this page
・昭和4年 is Gregorian year 1929
・Formula: 1926 + 4 − 1 = 1929
・Era start date is 1926-12-25
・Era end date is 1989-01-07
・1929 has a single era label
・Eto is 己巳