This Ruby library converts earth time to mars time and back again. You can choose between 5 variants of the Darian calendar system; Martiana, Defrost, Areosynchronous, Hensel and Aqua.

A simple Ethiopic to Gregorian calendar changer

Calendar date picker for rails; fork that allows disabling any date entry

Aikatsu calendar

Calculate dates based on the banking calendar.

Parser for Forward Calendar XML files

Japanese calendar utility for Ruby

Generate printable Google Calendar agendas

Retriving national holidays from Google Calendar.

Simple and clean JS calendar to enter dates on forms

calendar_date_select fork; includes highlighting

A tiny bit of glue to attach tags to event_calendar events and put tag clouds and faceted retrieval on event calendar pages.

Small additions to the event_calendar that geocode calendar events and display on a google map. Separated here because perhaps only of interest to a few.

MkCalJpl is a calendar library including Japan's old-calendar, using JPL DE430.

Allows different calendar layouts with some customization options.

A parser DENSO calendar

Ruboty plug-in to read schedule from Google Calendar.

weekly calendar that supports tasks and multi-day events

A simple monthly calendar generator with space for notes

script to generate calendar array