--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/classes/hirondelle/web4j/request/TimeZoneSourceImpl.java	Wed Dec 04 17:00:31 2013 +0100
@@ -0,0 +1,32 @@
+package hirondelle.web4j.request;
+
+import java.util.TimeZone;
+import javax.servlet.http.HttpServletRequest;
+
+import hirondelle.web4j.util.WebUtil;
+import hirondelle.web4j.Controller;
+
+/**
+ Retrieve the {@link TimeZone} stored in any scope under the key 
+ {@link hirondelle.web4j.Controller#TIME_ZONE}.
+ 
+ <P>Upon startup, the {@link hirondelle.web4j.Controller} will read in the <tt>DefaultUserTimeZone</tt>
+ configured in <tt>web.xml</tt>, and place it in application scope under the key 
+ {@link hirondelle.web4j.Controller#TIME_ZONE}, as a {@link TimeZone} object.
+ 
+ <P><em>If desired</em>, the application programmer can also store a user-specific 
+ {@link TimeZone} in session scope, <em>under the same key</em>. Thus, 
+ this class will first find the user-specific <tt>TimeZone</tt>, overriding the default 
+ <tt>TimeZone</tt> stored in application scope. 
+ 
+ <P>If any other behavior is desired, then simply provide an alternate implementation of 
+ {@link TimeZoneSource}.
+*/
+public final class TimeZoneSourceImpl implements TimeZoneSource {
+
+  /** See class comment. */
+  public TimeZone get(HttpServletRequest aRequest){
+    return (TimeZone)WebUtil.findAttribute(Controller.TIME_ZONE, aRequest);
+  }
+  
+}