# File lib/active_support/values/time_zone.rb, line 181
    def self.seconds_to_utc_offset(seconds, colon = true)
      format = colon ? UTC_OFFSET_WITH_COLON : UTC_OFFSET_WITHOUT_COLON
      sign = (seconds < 0 ? '-' : '+')
      hours = seconds.abs / 3600
      minutes = (seconds.abs % 3600) / 60
      format % [sign, hours, minutes]
    end