# File lib/active_support/core_ext/time/zones.rb, line 52 def find_zone!(time_zone) return time_zone if time_zone.nil? || time_zone.is_a?(ActiveSupport::TimeZone) # lookup timezone based on identifier (unless we've been passed a TZInfo::Timezone) unless time_zone.respond_to?(:period_for_local) time_zone = ActiveSupport::TimeZone[time_zone] || TZInfo::Timezone.get(time_zone) end # Return if a TimeZone instance, or wrap in a TimeZone instance if a TZInfo::Timezone time_zone.is_a?(ActiveSupport::TimeZone) ? time_zone : ActiveSupport::TimeZone.create(time_zone.name, nil, time_zone) rescue TZInfo::InvalidTimezoneIdentifier raise ArgumentError, "Invalid Timezone: #{time_zone}" end