--- a/include/common-transit.inc.php
+++ b/include/common-transit.inc.php
@@ -4,9 +4,16 @@
 	'saturday',
 	'weekday'
 );
+
 function service_period()
 {
+	
 	if (isset($_SESSION['service_period'])) return $_SESSION['service_period'];
+	$override = getServiceOverride();
+	if ($override['service_id']){
+		return $override['service_id'];
+	}
+
 	switch (date('w')) {
 	case 0:
 		return 'sunday';
@@ -35,5 +42,5 @@
 		return "";
 	}
 }
+?>
 
-?>