CPAN
Conversions from / to the Baháʼí calendar
CPAN
conversions from / to the Coptic calendar and from / to the Ethiopic calendar
CPAN
Conversions from / to the French Revolutionary calendar
CPAN
Extending the core class 'Date' with strftime and conversions with other calendars
CPAN
Conversions from / to the Hebrew calendar
CPAN
Arithmetic Variant of the Hijri Calendar
CPAN
Conversions from / to the Julian calendar
CPAN
conversions from/to the Maya calendar and from/to the Aztec calendar
CPAN
Conversions from / to the Persian calendar
CPAN
formatting any Date object or Date::Calendar::whatever object with 'strftime'