On Tuesday 31 July 2012 07:02:22 Nikos Chantziaras wrote: > On 31/07/12 06:43, Lorn Potter wrote: > > On 31/07/2012, at 1:28 PM, Nikos Chantziaras wrote: > >> I wonder if it's possible to deduce the timezone from the system's UTC > >> offset? The offset can be determined through gmtime() and localtime(), > > > >> both in C89 so nothing platform-specific here: > > If it were that easy, we wouldn't need the extensive tz database. :) > > Indeed. That was quite a naive question, since several timezones most > probably have the same offset, so you can't use the offset as an index > into the tz database.
I did a quick count on my copy of tzdata: 542 zone files, not including the
simple offsets (582 total).
But you gave me a nice idea: those offsets could be used as a fall-back in
case auto-detection fails miserably. Thanks.
Konrad
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