Ruby converting UTC to user's time zone

Question

I have dstring as saved in UTC. While I have user\'s timezone\'s offset standard_offset What I want to show that date in user\'s timezone after con

Answer 1

require 'tzinfo'
class Time
   def in_timezone(tzstring)
     tz = TZInfo::Timezone.get(tzstring)
     p = tz.period_for_utc(self.utc)
     # puts "#{tzstring} -> utc_offset=#{p.utc_offset},utc_total_offset=#{p.utc_total_offset},p.offset=#{p.offset}"
     e = self.utc + p.utc_total_offset
     "#{e.strftime('%Y-%d-%m %H:%M:%S')} #{p.zone_identifier}"
   end
end

[Time.parse("2013-10-20T21:19:00Z"), Time.parse("2013-11-20T21:19:00Z")].each do |t|
    puts '=======================================================> ' + t.to_s
    puts "\t" + t.in_timezone('GMT')
    puts "\t" + "------------------"
    puts "\t" + t.in_timezone('Europe/London')
    puts "\t" + t.in_timezone('Europe/Prague')
    puts "\t" + t.in_timezone('Asia/Jerusalem')
end