From: "R.. Kumar 1.9.1 OSX" <sentinel1879@...>
Date: 2010-08-21T03:05:34+09:00
Subject: Re: Dealing with dates & timezones

Stuart Clarke wrote:
> Hey all,
> 
> I was wondering if I could ask for some advice regarding dates. I have a
> file that contains lots of date values formatted like so:
> 
> Sunday, 15 August 2010 05:46:50 o'clock BST
> 
> I want basically out these dates as follows, applying the necessary time
> zone bias:

I have once done some time zone conversion in ruby. My apologies, I do 
not have the time to read your post carefully. I will just attach the 
small program here. It uses the tzinfo. (I cannot remember if that is 
inbuilt or is a gem).

http://tzinfo.rubyforge.org/doc/files/README.html

The full program is a bit long (attached) since i parse various command 
line parameters but here's the meat of it. It does various conversions 
in a loop.

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
  local = tz.local_to_utc(Time.parse(timestr))
  puts tz1.utc_to_local(local)
}
(you would not need to loop. unparsed refers to ARGV on command line)

See for full: http://gist.github.com/540828

reg
rahul
-- 
Posted via http://www.ruby-forum.com/.