README.md in clockwork-0.3.4 vs README.md in clockwork-0.4.0

@@ -117,9 +117,44 @@
 You can set more than one timing:
 
     every(1.hour, 'reminders.send', :at => ['12:00', '18:00'])
     # send reminders at noon and evening
 
+You can also specify a timezone (default is the local timezone):
+
+    every(1.day, 'reminders.send', :at => '00:00', :tz => 'UTC')
+    # Runs the job each day at midnight, UTC.
+    # The value for :tz can be anything supported by [TZInfo](http://tzinfo.rubyforge.org/)
+
+
+Configuration
+-----------------------
+
+Clockwork exposes a couple of configuration options you may change:
+
+### :logger
+
+By default Clockwork logs to STDOUT. In case you prefer to make it to use our
+own logger implementation you have to specify the `logger` configuration option. See example below.
+
+### :sleep_timeout
+
+Clockwork wakes up once a second (by default) and performs its duties. If that
+is the rare case you need to tweak the number of seconds it sleeps then you have
+the `sleep_timeout` configuration option to set like shown below.
+
+### :tz
+
+This is the default timezone to use for all events.  When not specified this defaults to the local
+timezone.  Specifying :tz in the the parameters for an event overrides anything set here.
+
+### Configuration example
+
+    Clockwork.configure do |config|
+      config[:sleep_timeout] = 5
+      config[:logger] = Logger.new(log_file_path)
+      config[:tz] = 'EST'
+    end
 
 Anatomy of a clock file
 -----------------------
 
 clock.rb is standard Ruby.  Since we include the Clockwork module (the