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

Note: This RFC has been updated by RFC 5546, RFC 6868, RFC 7529, RFC 7953, RFC 7986, RFC 9073, RFC 9074, RFC 9253

Errata ID: 5505
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Ken Murchison
Date Reported: 2018-09-26
Held for Document Update by: Francesca Palombini
Date Held: 2024-01-16

Section 3.2.19 says:

       tzidparam  = "TZID" "=" [tzidprefix] paramtext

It should say:

       tzidparam  = "TZID" "=" [tzidprefix] param-value

Notes:

TZID appears to be the only parameter defined 5545 whose value can not be a quoted string. This is problematic in that time zone IDs such as "GMT-03:00" are beginning to appear (note the embedded colon). RFC 6868 has no mechanism to quote a colon character, as it relies on such characters appearing within a quoted string. I see no technical reason why a TZID parameter can not be quoted, and existing implementations already accept quoted TZIDs.

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