      def time_converter
          case @ps_timezone_string
              when "ACST" then	 TZInfo::Timezone.get('Australia/Adelaide')
              when "AEST" then	 TZInfo::Timezone.get('Australia/Melbourne')
              when "AT" then	 TZInfo::Timezone.get('Canada/Atlantic')
              when "AWST" then	 TZInfo::Timezone.get('Australia/West')
              when "BRT" then	 TZInfo::Timezone.get('Brazil/East')
              when "CCT" then	 TZInfo::Timezone.get('Indian/Cocos')
              when "CET" then	 TZInfo::Timezone.get('Europe/Amsterdam')
              when "CT" then	 TZInfo::Timezone.get('US/Central')
              when "ET" then	 TZInfo::Timezone.get('US/Eastern')
              when "EET" then	 TZInfo::Timezone.get('EET')
              when "JST" then	 TZInfo::Timezone.get('Japan')
              when "MSK" then	 TZInfo::Timezone.get('Europe/Moscow')
              when "MT" then	 TZInfo::Timezone.get('US/Mountain')
              when "NZT" then	 TZInfo::Timezone.get('NZ')
              when "PT" then	 TZInfo::Timezone.get('US/Pacific')
              when "UTC" then	 TZInfo::Timezone.get('UTC')
              when "WET" then	 TZInfo::Timezone.get('WET')
          end
      end