diff --git a/mod/quiz/attempt.php b/mod/quiz/attempt.php
index e7e57717a49..b865d5d3849 100644
--- a/mod/quiz/attempt.php
+++ b/mod/quiz/attempt.php
@@ -538,6 +538,10 @@
 
 
     $secondsleft = ($quiz->timeclose ? $quiz->timeclose : 999999999999) - time();
+    if ($isteacher) {
+        // For teachers ignore the quiz closing time
+        $secondsleft = 999999999999;
+    }
     // If time limit is set include floating timer.
     if ($quiz->timelimit > 0) {