diff --git a/ChangeLog b/ChangeLog
index 1c2dcc2e3..d47cf7cb0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
 2007-10-30  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* UI/Scheduler/UIxCalListingActions.m ([UIxCalListingActions
+	-eventsListAction]): substitude the start and end date with their
+	UTC counterpart, taking into account the offset from UTC related
+	to those dates instead of the current one. This renders
+	-[UIxCalMainView -userUTCOffset] obsolete because the computings
+	that occured in javascript are now done server-side.
+
+	* UI/Scheduler/UIxCalMainView.m ([UIxCalMainView -userUTCOffset]):
+	removed obsolete method.
+
 	* SoObjects/Mailer/NSString+Mail.m ([NSString -htmlToText]): new
 	method converting html content to plain text.
 
diff --git a/UI/Scheduler/UIxCalListingActions.m b/UI/Scheduler/UIxCalListingActions.m
index 56a608294..0937d932e 100644
--- a/UI/Scheduler/UIxCalListingActions.m
+++ b/UI/Scheduler/UIxCalListingActions.m
@@ -25,6 +25,7 @@
 #import <Foundation/NSEnumerator.h>
 #import <Foundation/NSNull.h>
 #import <Foundation/NSString.h>
+#import <Foundation/NSTimeZone.h>
 #import <Foundation/NSValue.h>
 
 #import <NGObjWeb/WOContext.h>
@@ -287,6 +288,24 @@
   return formattedDate;    
 }
 
+- (NSString *) _adjustedDateForSeconds: (unsigned int) seconds
+                             forAllDay: (BOOL) forAllDay
+{
+  NSCalendarDate *date;
+  unsigned int newSeconds, offset;
+
+  date = [NSCalendarDate dateWithTimeIntervalSince1970: seconds];
+  [date setTimeZone: userTimeZone];
+
+  offset = [userTimeZone secondsFromGMTForDate: date];
+  if (forAllDay)
+    newSeconds = seconds + [userTimeZone secondsFromGMT] - offset;
+  else
+    newSeconds = seconds + offset;
+
+  return [NSString stringWithFormat: @"%u", newSeconds];
+}
+
 - (WOResponse *) eventsListAction
 {
   NSArray *fields, *oldEvent;
@@ -309,9 +328,15 @@
       newEvent = [NSMutableArray arrayWithArray: oldEvent];
       isAllDay = [[oldEvent objectAtIndex: 7] boolValue];
       interval = [[oldEvent objectAtIndex: 4] intValue];
+      [newEvent replaceObjectAtIndex: 4
+		withObject: [self _adjustedDateForSeconds: interval
+				  forAllDay: isAllDay]];
       [newEvent addObject: [self _formattedDateForSeconds: interval
 				 forAllDay: isAllDay]];
       interval = [[oldEvent objectAtIndex: 5] intValue];
+      [newEvent replaceObjectAtIndex: 5
+		withObject: [self _adjustedDateForSeconds: interval
+				  forAllDay: isAllDay]];
       [newEvent addObject: [self _formattedDateForSeconds: interval
 				 forAllDay: isAllDay]];
       [newEvents addObject: newEvent];
diff --git a/UI/Scheduler/UIxCalMainView.m b/UI/Scheduler/UIxCalMainView.m
index a7c0126f0..fdbdd81f7 100644
--- a/UI/Scheduler/UIxCalMainView.m
+++ b/UI/Scheduler/UIxCalMainView.m
@@ -42,15 +42,6 @@ static NSMutableArray *yearMenuItems = nil;
 
 @implementation UIxCalMainView
 
-- (NSString *) userUTCOffset
-{
-  NSTimeZone *userTZ;
-
-  userTZ = [[context activeUser] timeZone];
-
-  return [NSString stringWithFormat: @"%d", [userTZ secondsFromGMT]];
-}
-
 - (NSArray *) monthMenuItems
 {
   unsigned int count;
diff --git a/UI/Templates/SchedulerUI/UIxCalMainView.wox b/UI/Templates/SchedulerUI/UIxCalMainView.wox
index 8359c472d..d39e8e7d3 100644
--- a/UI/Templates/SchedulerUI/UIxCalMainView.wox
+++ b/UI/Templates/SchedulerUI/UIxCalMainView.wox
@@ -8,9 +8,6 @@
   xmlns:label="OGo:label"
   className="UIxPageFrame"
   title="title">
-  <script type="text/javascript">
-    var UTCOffset = <var:string value="userUTCOffset"/>;
-  </script>
   <div class="preload" style="visibility: hidden;">
     <img rsrc:src="event-gradient.png"/>
   </div>
diff --git a/UI/WebServerResources/JavascriptAPIExtensions.js b/UI/WebServerResources/JavascriptAPIExtensions.js
index 18fe2bd6b..d288fb4b0 100644
--- a/UI/WebServerResources/JavascriptAPIExtensions.js
+++ b/UI/WebServerResources/JavascriptAPIExtensions.js
@@ -82,14 +82,21 @@ Date.prototype.sogoDayName = function() {
 Date.prototype.daysUpTo = function(otherDate) {
   var days = new Array();
 
-  var day1Date = new Date();
-  day1Date.setTime(this.getTime());
-  day1Date.setHours(0, 0, 0, 0);
-  var day2Date = new Date();
-  day2Date.setTime(otherDate.getTime());
-  day2Date.setHours(23, 59, 59, 999);
-  var day1 = day1Date.getTime();
-  var day2 = day2Date.getTime();
+  var day1 = this.getTime();
+  var day2 = otherDate.getTime();
+  if (day1 > day2) {
+    var tmp = day1;
+    day1 = day2;
+    day2 = tmp;
+  }
+//   var day1Date = new Date();
+//   day1Date.setTime(this.getTime());
+//   day1Date.setHours(0, 0, 0, 0);
+//   var day2Date = new Date();
+//   day2Date.setTime(otherDate.getTime());
+//   day2Date.setHours(23, 59, 59, 999);
+//   var day1 = day1Date.getTime();
+//   var day2 = day2Date.getTime();
 
   var nbrDays = Math.floor((day2 - day1) / 86400000) + 1;
   for (var i = 0; i < nbrDays; i++) {
diff --git a/UI/WebServerResources/SchedulerUI.js b/UI/WebServerResources/SchedulerUI.js
index 7fd00f8bf..19e4bce06 100644
--- a/UI/WebServerResources/SchedulerUI.js
+++ b/UI/WebServerResources/SchedulerUI.js
@@ -617,17 +617,11 @@ function drawCalendarEvent(eventData, sd, ed) {
    var viewEndDate = ed.asDate();
 
    var startDate = new Date();
+   startDate.setTime(eventData[4] * 1000);
    var endDate = new Date();
-   if (eventData[7] == 0) {
-     startDate.setTime(eventData[4] * 1000 + (1000 * UTCOffset));
-     endDate.setTime(eventData[5] * 1000 + (1000 * UTCOffset));
-   }
-   else {
-     startDate.setTime(eventData[4] * 1000);
-     endDate.setTime(eventData[5] * 1000);
-   }
+   endDate.setTime(eventData[5] * 1000);
 
-//    log ("s: " + startDate+ "; e: " + endDate);
+//    log ("s: " + startDate + "; e: " + endDate);
 
    var days = startDate.daysUpTo(endDate);