[Ietf-calsify] DST discontinuities part 1: date-times that fall in discontinutities

[Eliot Lear]

Jonathan Lennox wrote:
> In the meeting today, we brought up the issue of DST discontinuities for
> RRULEs, and Eliot asked for text to be sent to the mailing list.
>
> The first issue has to do with how you handle an ambiguous or nonexistent
> DATE-TIME value.  E.g. (assuming America/New_York describes the U.S. Eastern
> Time Zone) how do you handle the two cases
>
> DTSTART;TZID=America/New_York:20060402T023000 (which does not exist)
>
> DTSTART;TZID=America/New_York:20061029T013000 (which occurs twice)
>
> I would suggest that both these examples be forbidden.  For the latter case,
> clients MUST use UTC (or potentially, some other timezone which does not
> have a jump at that time) to describe the event.
>
>   
Chair hat off, I agree with your suggestion.

Eliot