Index: app/views/gantts/show.html.erb
===================================================================
--- app/views/gantts/show.html.erb	(revision 1537)
+++ app/views/gantts/show.html.erb	(revision 1550)
@@ -170,10 +170,10 @@
 top = headers_height + 10
 @gantt.events.each do |i| 
   if i.is_a? Issue 
-	i_start_date = (i.start_date >= @gantt.date_from ? i.start_date : @gantt.date_from )
-	i_end_date = (i.due_before <= @gantt.date_to ? i.due_before : @gantt.date_to )
-	
-	i_done_date = i.start_date + ((i.due_before - i.start_date+1)*i.done_ratio/100).floor
+	i_start_date = (i.start_date >= @gantt.date_from ? i.start_date.to_date : @gantt.date_from )
+	i_end_date = (i.due_before <= @gantt.date_to ? i.due_before.to_date : @gantt.date_to )
+
+	i_done_date = (i.start_date + ((i.due_before - i.start_date+1)*i.done_ratio/100).floor).to_date
 	i_done_date = (i_done_date <= @gantt.date_from ? @gantt.date_from : i_done_date )
 	i_done_date = (i_done_date >= @gantt.date_to ? @gantt.date_to : i_done_date )