In current use[edit | edit source]

General[edit | edit source]

Gregorian calendar

Ethnic and national[edit | edit source]

Liturgical[edit | edit source]

Used by miscellaneous groups[edit | edit source]

Archaic/Obsolete calendars[edit | edit source]

Proposed[edit | edit source]

Reform calendars[edit | edit source]

The following are proposed reforms of the Gregorian calendar:

New calendars[edit | edit source]

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[edit | edit source]

The following are proposals for use if settlements are made on other planets:

Fictional[edit | edit source]

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