diff --git a/SOPE/NGCards/ChangeLog b/SOPE/NGCards/ChangeLog
index f57d01a6e..a2fec6384 100644
--- a/SOPE/NGCards/ChangeLog
+++ b/SOPE/NGCards/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-06  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* iCalDateTime.m (-setTimeZone:): don't modify the date in case of
+	an all-day value, otherwise the resulting date will be recomputed.
+
 2009-10-19  Francis Lachapelle  <flachapelle@inverse.ca>
 
 	* iCalDateTime.m (-setTimeZone:): don't add the time in case of an
diff --git a/SOPE/NGCards/iCalDateTime.m b/SOPE/NGCards/iCalDateTime.m
index a3e625cee..cc0a2d4e7 100644
--- a/SOPE/NGCards/iCalDateTime.m
+++ b/SOPE/NGCards/iCalDateTime.m
@@ -73,9 +73,7 @@
 
   [self setValue: 0 ofAttribute: @"tzid" to: newTZId];
 
-  if ([self isAllDay])
-    [self setDate: dateTime];
-  else
+  if (![self isAllDay])
     [self setDateTime: dateTime];
 }