solar calendar; Gregorian calendar
Refers to the modern solar calendar, especially the Gregorian calendar, as opposed to the traditional lunisolar calendar (旧暦).
The solar calendar was adopted in Japan during the Meiji period.
January 1st on the Gregorian calendar is New Year's Day.
新暦 is the modern Gregorian solar calendar adopted in the Meiji era, while 旧暦 is the older lunisolar calendar it replaced.
change log; update history; what's new
新 (new) + 暦 (calendar), referring to the modern solar calendar introduced in contrast to the old lunisolar calendar.