diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index b428f174eef..a0b7229c297 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -5627,6 +5627,10 @@ function reset_course_userdata($data) {
             // Update calendar events for all modules.
             course_module_bulk_update_calendar_events($modname, $data->courseid);
         }
+        // Purge the course cache after resetting course start date. MDL-76936
+        if ($data->timeshift) {
+            course_modinfo::purge_course_cache($data->courseid);
+        }
     }
 
     // Mention unsupported mods.