Common Era; CE; AD
Refers to the year-numbering system starting from the traditionally calculated birth year of Jesus. Used in dates, historical contexts, and when distinguishing from Japanese era names.
西暦2024年は令和6年です。
The year 2024 CE is Reiwa 6.
These ruins date from around 800 CE.
Western calendar; Gregorian calendar
Refers to the calendar system itself, as opposed to the Japanese traditional era-name system or other calendars. Often used when specifying date formats.
履歴書には西暦で生年月日を書いてください。
Please write your date of birth using the Western calendar on your résumé.
This temple was built in the 7th century CE.
Reiwa 6 corresponds to 2024 in the Western calendar.
The Reiwa year is calculated by subtracting 2018 from the Western year.