# Syncronizing and sharing calendar events _(event)_

Calendars hold events and tasks
(tasks, a.k.a. todo items, are events without time or date assigned).

Each user can create private calendars tied to their personal account.

Shared calendars can be created for groups of users.

Private and shared calendars can be exported as read-only calendar files
e.g. for publishing on a website.

Technically,
private and shared calendars is a [CalDAV] service using [Radicale],
and public calendars are [iCalendar] files.

[CalDAV]: https://en.wikipedia.org/wiki/CalDAV
  "CalDAV - Internet standard allowing a client to access scheduling information on a remote server"

[Radicale]: https://radicale.org/
  "Radicale - Free and Open-Source CalDAV and CardDAV Server"

[iCalendar]: https://en.wikipedia.org/wiki/ICalendar
  "iCalendar - media type which allows users to store and exchange calendaring and scheduling information"


## Invites

Triggering and tracking (semi-)automated invitations to events
(i.e. CalDAV extensions [iTIP][] and [iMIP][])
is currently not supported.

[iTIP]: <https://devguide.calconnect.org/Scheduling/iTIP/>
  "iTIP - specification on handling participant invites for CalDAV events"

[iMIP]: <https://devguide.calconnect.org/Scheduling/iMIP/>
  "iMIP - specification on distributing iTIP invites via email"