Translation guide
Refers to the act or process of changing the calendar system, such as switching from the Julian to the Gregorian calendar, or adjusting the traditional Japanese calendar. The most common term is 改暦 (kaireki).
calendar reform
To refer to the act of changing the calendar system, typically in a historical or administrative context.
The standard term for calendar reform, used in historical and official contexts. It refers to the change from one calendar system to another.
明治時代に改暦が行われた。
Calendar reform was carried out in the Meiji period.
A more descriptive phrase meaning 'revision of the calendar'. It can be used in similar contexts but is slightly less common as a set term.
Discuss the revision of the calendar.
A more technical phrase meaning 'revision of the calendar system', often used in academic or historical writing.
In China, the calendar system was revised many times.