From: Eric Hodel <drbrain@...7.net>
Date: 2012-08-30T09:47:13+09:00
Subject: Re: how do extract timezone from datetime object?

On Aug 29, 2012, at 5:32 PM, Dan Quach <lists@ruby-forum.com> wrote:
> I'm working on an external interface where a partner website is giving
> us date time as strings.
> 
>>> dt = DateTime.parse( "Wed, 29 Aug 2012 17:26:44 -0700" )
> => Wed, 29 Aug 2012 17:26:44 -0700
>>> dt.strftime( "%z" )
> => "-0700"
> 
> What I have to do is extract the UTC time zone.  So in the prior example
> I need an integer of -7. (UTC-7) in this scenario.
> 
> Is there some easy way of doing this?

What do you do for "Wed, 29 Aug 2012 17:26:44 +0630" (Myanmar and Cocos Islands) or other half-hour time zones?

zone_offset = df.strftime("%z").to_i 10
"UTF%+i" % (zone_offset / 100)