From: "R.. Kumar 1.9.1 OSX" <sentinel1879@...>
Date: 2010-08-21T03:09:20+09:00
Subject: Re: Dealing with dates & timezones


> 
> tz = TZInfo::Timezone.get(Choice.choices[:from])
> tz1 = TZInfo::Timezone.get('Asia/Calcutta')
> #local = tz.utc_to_local(Time.utc(2008,9,4,14,00,0))
> unparsed.each {|timestr|
>   puts timestr                                  [1]
>   local = tz.local_to_utc(Time.parse(timestr))
>   puts tz1.utc_to_local(local)                  [2]
> }
> (you would not need to loop. unparsed refers to ARGV on command line)

Please note in the above program, i am always converting incoming time 
to time in Asia/Calcutta. However, the incoming time (time "from" can be 
passed on the command line).

tz is time_zone from
tz1 is time_zone to (calcutta)

[1] is what the user entered such as "12:00 AM"
[2] is converted time in Asia/Cal.

I hope this helps.
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