README.md in clockwork-0.5.1 vs README.md in clockwork-0.5.2

@@ -39,10 +39,15 @@
 it as the module (thanks to [hoverlover](https://github.com/hoverlover/clockwork/)).
 
     require 'clockwork'
 
     module Clockwork
+
+      configure do |cofig|
+        config[:tz] = "America/Chicago"
+      end
+
       handler do |job|
         puts "Running #{job}"
       end
 
       every(10.seconds, 'frequent.job')
@@ -140,10 +145,10 @@
 
 Run on every first day of month.
 
     Clockwork.every(1.day, 'myjob', :if => lambda { |t| t.day == 1 })
 
-The argument is an instance of `Time`.  If `:tz` option is set, it is local time.
+The argument is an instance of `ActiveSupport::TimeWithZone` if the `:tz` option is set. Otherwise, it's an instance of `Time`.
 
 This argument cannot be omitted.  Please use _ as placeholder if not needed.
 
     Clockwork.every(1.second, 'myjob', :if => lambda { |_| true })