Conversor de timezone

timezone.rb

file = File.new("/Users/m3nd3s/Desktop/schedule.txt", 'r')

begin
  report = File.open("/Users/m3nd3s/Desktop/report.txt", 'w')

  while(line = file.gets)
    cols = line.split(" - ")
    utc_time = DateTime.parse(cols[0])
    br_time = utc_time.in_time_zone('Brasilia')

    report.puts "#{cols[1].strip}: #{br_time}"
  end
ensure
  report.close if report
end