Get the time in another timezone

time_tz_monkeypatch.rb

require 'time'

class Time
  def in(tz)
    current_tz = ENV["TZ"]
    ENV["TZ"] = tz
    new_time = self.getutc.getlocal
    ENV["TZ"] = current_tz
    new_time
  end
end


t = Time.now        # => Thu Aug 14 10:55:24 -0700 2008
t.in("US/Eastern")  # => Thu Aug 14 13:55:24 -0400 2008
t                   # => Thu Aug 14 10:55:24 -0700 2008
t.in("US/Central")  # => Thu Aug 14 12:55:24 -0500 2008
t                   # => Thu Aug 14 10:55:24 -0700 2008