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RFC 5545RFCShould KnowBack Office2009
Internet Calendaring and Scheduling Core Object Specification
Identity & Provisioning·RFC Editor
WHY YOU NEED THIS
Scheduling integrations, calendar exports, meeting invites, and CalDAV sync all use iCalendar format. Know this when building calendar features.
What It Defines
Defines the iCalendar data format (VCALENDAR, VEVENT, VTODO, VFREEBUSY) for event exchange. Used by CalDAV servers, .ics file attachments, and calendar system integration.
Canonical (Normative)
Related References
icalendarcalendarscheduling
Standards Body
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