diff --git a/blocks/SG_iCal_VEvent.php b/blocks/SG_iCal_VEvent.php
index 00b1f10..166db35 100755
--- a/blocks/SG_iCal_VEvent.php
+++ b/blocks/SG_iCal_VEvent.php
@@ -179,6 +179,18 @@ class SG_iCal_VEvent {
 		return $this->end - $this->start;
 	}
 	
+	/**
+	 * Returns true if duration is multiple of 86400
+	 * @return bool
+	 */
+	public function isWholeDay() {
+		$dur = $this->getDuration();
+		if ($dur > 0 && ($dur % 86400) == 0) {
+			return true;
+		}
+		return false;
+	}
+	
 	/**
 	 * Returns the given property of the event.
 	 * @param string $prop
diff --git a/demo/index.php b/demo/index.php
index 4353f19..8551eb4 100644
--- a/demo/index.php
+++ b/demo/index.php
@@ -17,14 +17,14 @@ $evts = $query->Between($ical,strtotime('20100901'),strtotime('20101131'));
 
 $data = array();
 foreach($evts as $id => $ev) {
-	
 	$jsEvt = array(
 		"id" => ($id+1),
 		"title" => $ev->getProperty('summary'),
 		"start" => $ev->getStart(),
-		"end"   => $ev->getEnd(),
-		"allDay" => false
+		"end"   => $ev->getEnd()-1,
+		"allDay" => $ev->isWholeDay()
 	);
+
 	$data[] = $jsEvt;
 	
 	if (isset($ev->recurrence)) {
@@ -36,13 +36,15 @@ foreach($evts as $id => $ev) {
 			$count++;
 			$start = $next;
 			$jsEvt["start"] = $start;
-			$jsEvt["end"] = $start + $ev->getDuration();
+			$jsEvt["end"] = $start + $ev->getDuration()-1;
+			
 			$data[] = $jsEvt;
 		}
 	}
 	
 }
-
+//echo(date('Ymd\n',$data[0][start]));
+//echo(date('Ymd\n',$data[1][start]));
 //dump_t($data);
 
 $events = "events:".json_encode($data).',';