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[calsify] [Technical Errata Reported] RFC5545 (6212)

RFC Errata System <rfc-editor@rfc-editor.org> Tue, 23 June 2020 14:57 UTC

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Subject: [calsify] [Technical Errata Reported] RFC5545 (6212)
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The following errata report has been submitted for RFC5545,
"Internet Calendaring and Scheduling Core Object Specification (iCalendar)".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid6212

--------------------------------------
Type: Technical
Reported by: Lars Henriksen <LarsHenriksen@get2net.dk>

Section: 3.8.5.3

Original Text
-------------
      Daily until December 24, 1997:

       DTSTART;TZID=America/New_York:19970902T090000
       RRULE:FREQ=DAILY;UNTIL=19971224T000000Z

       ==> (1997 9:00 AM EDT) September 2-30;October 1-25
           (1997 9:00 AM EST) October 26-31;November 1-30;December 1-23

Corrected Text
--------------
      Daily until December 24, 1997:

       DTSTART;TZID=America/New_York:19970902T090000
       RRULE:FREQ=DAILY;UNTIL=19971224T140000Z
                                       ^^
       ==> (1997 9:00 AM EDT) September 2-30;October 1-25
           (1997 9:00 AM EST) October 26-31;November 1-30;December 1-24
                                                                     ^^

Notes
-----
The UNTIL rule part has value type DATE-TIME (same as DTSTART), but the introductory text "Daily until December 24, 1997" mentions a DATE only. Assuming that "until", like UNTIL, is inclusive, I would expect

    (1997 9:00 AM EST) December 24

to be the last instance, i.e. the unstated time is 9:00 AM. Translating to UTC you get

    19971224T140000Z

The same error occurs in all examples of section 3.8.5.3 with "December 24, 1997", four in all: pages 123 (above), 125 (twice) and 126. The resulting occurrences are only affected for pages 123 and 125 (second).

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--------------------------------------
RFC5545 (draft-ietf-calsify-rfc2445bis-10)
--------------------------------------
Title               : Internet Calendaring and Scheduling Core Object Specification (iCalendar)
Publication Date    : September 2009
Author(s)           : B. Desruisseaux, Ed.
Category            : PROPOSED STANDARD
Source              : Calendaring and Scheduling Standards Simplification
Area                : Applications
Stream              : IETF
Verifying Party     : IESG

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