Ruby timezone offset problem

I need to assign a timezone offset to a T开发者_运维百科ime to get current day of the week for a specified offset. This is not with rails so I need a pure Ruby formatter/parser to do this.

Thanks.

This is what I found:

require 'date'
local = DateTime.now 
new_offset = Rational(0, 24) #put the offset you want as first argument
utc = local.new_offset(new_offset)

Returns the offset in seconds between the timezone of time and UTC.

   t = Time.gm(2000,1,1,20,15,1)   #=> 2000-01-01 20:15:01 UTC
   t.gmt_offset                    #=> 0
   l = t.getlocal                  #=> 2000-01-01 14:15:01 -0600
   l.gmt_offset                    #=> -21600

#As a string
t = Time.new(2011,6,27,14,10,0, "+07:00")
# or in seconds from UTC
t = Time.new(2011,6,27,14,10,0, 7*60*60)