method

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v7.1.3.4 - Show latest stable - 0 notes - Class: ActiveSupport::TimeZone

[](arg) public

Locate a specific time zone object. If the argument is a string, it is interpreted to mean the name of the timezone to locate. If it is a numeric value it is either the hour offset, or the second offset, of the timezone to find. (The first one with that offset will be returned.) Returns nil if no such time zone is known to the system.

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# File activesupport/lib/active_support/values/time_zone.rb, line 232
      def [](arg)
        case arg
        when self
          arg
        when String
          begin
            @lazy_zones_map[arg] ||= create(arg)
          rescue TZInfo::InvalidTimezoneIdentifier
            nil
          end
        when TZInfo::Timezone
          @lazy_zones_map[arg.name] ||= create(arg.name, nil, arg)
        when Numeric, ActiveSupport::Duration
          arg *= 3600 if arg.abs <= 13
          all.find { |z| z.utc_offset == arg.to_i }
        else
          raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}"
        end
      end

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