Tools
Date and time tools
Tools for checking dates, differences, and Japanese era names.
Japanese era
Japanese Era Converter
Convert Gregorian dates from the Meiji era onward into Japanese era notation with era boundary dates handled correctly.
Era table
Japanese Era Table
Check a year-by-year table of Gregorian years, Japanese era names, zodiac animals, and sexagenary cycle labels.
Age
Age Calculator
Calculate age from a birth date and reference date, including the next birthday and days remaining.
Days
Days Calculator
Calculate the number of days between two dates, including absolute and inclusive day counts.