RFC 5545, "Internet Calendaring and Scheduling Core Object Specification (iCalendar)", September 2009

Errata ID: 5215
Status: Reported
Type: Technical

Reported By: Richard Smith
Date Reported: 2017-12-24

Section 3.8.5.1 says:

   Purpose:  This property defines the list of DATE-TIME exceptions for
   recurring events, to-dos, journal entries, or time zone
   definitions.

...

   Conformance:  This property can be specified in recurring "VEVENT",
   "VTODO", and "VJOURNAL" calendar components as well as in the
   "STANDARD" and "DAYLIGHT" sub-components of the "VTIMEZONE"
   calendar component.

It should say:

   Purpose:  This property defines the list of DATE-TIME exceptions for
   recurring events, to-dos or journal entries.

...

   Conformance:  This property can be specified in recurring "VEVENT",
   "VTODO", and "VJOURNAL" calendar components.

Notes:

Section 3.8.5.1 describes Exception Date-Times (EXDATE).

tzprop (section 3.6.5) does not allow EXDATE.

(Of course, the problem could be that 3.6.5 should include EXDATE.)

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