- a calendar framework for Plone

Overview is a new calendar framework for Plone.


  • Dexterity behaviors and Archetypes type,
  • Timezone support,
  • Recurring Events,
  • Whole day events,
  • Open end events (End on the same day),
  • Icalendar export,
  • Icalendar import,
  • Better calendar and events portlets,
  • An event listing and event detail view.

It was developed with these goals in mind:

  • Encapsulation and independence: All event related code should reside in a single package. Relevant, re-usable functionality is split to seperate packages. Plone’s dependencies on calendar related code should be reduced to a minimum. should be able to be deinstalled from Plone.
  • Dexterity and Archetypes support: should provide Dexterity behaviors, which can be used in Dexterity types and an ATEvent content type (factored out from ATContentTypes). For a Dexterity event type, use 1.1 or newer.
  • Standards compliancy: We support the icalendar standard (RFC5545) including recurrence.
  • Recurring events based on the RFC5545 standard.