diff --git a/lib/phpunit/classes/util.php b/lib/phpunit/classes/util.php
index 7e890559017..114a55b4674 100644
--- a/lib/phpunit/classes/util.php
+++ b/lib/phpunit/classes/util.php
@@ -216,6 +216,11 @@ class phpunit_util extends testing_util {
         filter_manager::reset_caches();
         core_filetypes::reset_caches();
 
+        // Reset static unit test options.
+        if (class_exists('\availability_date\condition', false)) {
+            \availability_date\condition::set_current_time_for_test(0);
+        }
+
         // Reset internal users.
         core_user::reset_internal_users();