In current use[]
General[]
Ethnic and national[]
Category Ethnic and national calendars not found
Liturgical[]
Used by miscellaneous groups[]
Category Calendars used by miscellaneous groups not found
Archaic/Obsolete calendars[]
Proposed[]
Reform calendars[]
The following are proposed reforms of the Gregorian calendar:
New calendars[]
The following are more radical proposals that are not based on the Gregorian calendar, but are intended to replace it or to supplement it.
Non-Earth calendar proposals[]
The following are proposals for use if settlements are made on other planets:
Category Calendars intended for other places than Earth not found