On Fri, Jan 20, 2006 at 10:59:50AM -0500, Garrett, Philip (MAN-Corporate) wrote: > > -----Original Message----- > > From: Bill Moseley [mailto:[EMAIL PROTECTED] > > Sent: Friday, January 20, 2006 10:26 AM > > To: datetime@perl.org > > Subject: Daylight Saving > > > > I have a zipcode table that lists the city, state, timezone offset (eg > > -5) and a flag indicating if the location uses daylight saving time > > for U.S. zipcodes. I don't have the Olson name in the table. > > > > How do I set the timezone in this case -- taking into account the dst > > settings? > > It looks like DateTime::TimeZone doesn't support offsets with DST. > > You could use a brute force approach where you choose a single Olson > name to go with each offset/dst combination. > e.g. (just guessing at these) > GMT-0500(DST) => America/New_York > GMT-0500 => America/Indiana/Indianapolis > GMT-0800(DST) => America/Los_Angeles > > Then, put that Olson name in the table and use it. > It's not exactly elegant, but it'd probably get you what you want.
Just use the Olson PST8PDT MST7MDT MST CST6CDT EST5EDT EST zones. I assume there aren't PST and CST zones because they aren't actually in use, but if they are needed, maybe you could use DateTime::TimeZone::OffsetOnly? Is there a reason the Olson etcetera file isn't included in DT::TZ?
