diff --git a/calendar/classes/external/calendar_event_exporter.php b/calendar/classes/external/calendar_event_exporter.php
index bd1d7515be8..1764d12271d 100644
--- a/calendar/classes/external/calendar_event_exporter.php
+++ b/calendar/classes/external/calendar_event_exporter.php
@@ -240,11 +240,11 @@ class calendar_event_exporter extends event_exporter_base {
         }
 
         if ($min) {
-            $values = array_merge($values, $this->get_module_timestamp_min_limit($starttime, $min));
+            $values = array_merge($values, $this->get_timestamp_min_limit($starttime, $min));
         }
 
         if ($max) {
-            $values = array_merge($values, $this->get_module_timestamp_max_limit($starttime, $max));
+            $values = array_merge($values, $this->get_timestamp_max_limit($starttime, $max));
         }
 
         return $values;
@@ -252,12 +252,13 @@ class calendar_event_exporter extends event_exporter_base {
 
     /**
      * Get the correct minimum midnight day limit based on the event start time
-     * and the module's minimum timestamp limit.
+     * and the minimum timestamp limit of what the event belongs to.
      *
      * @param DateTimeInterface $starttime The event start time
      * @param array $min The module's minimum limit for the event
+     * @return array Returns an array with mindaytimestamp and mindayerror keys.
      */
-    protected function get_module_timestamp_min_limit(\DateTimeInterface $starttime, $min) {
+    protected function get_timestamp_min_limit(\DateTimeInterface $starttime, $min) {
         // We need to check that the minimum valid time is earlier in the
         // day than the current event time so that if the user drags and drops
         // the event to this day (which changes the date but not the time) it
@@ -295,15 +296,16 @@ class calendar_event_exporter extends event_exporter_base {
 
     /**
      * Get the correct maximum midnight day limit based on the event start time
-     * and the module's maximum timestamp limit.
+     * and the maximum timestamp limit of what the event belongs to.
      *
      * @param DateTimeInterface $starttime The event start time
      * @param array $max The module's maximum limit for the event
+     * @return array Returns an array with maxdaytimestamp and maxdayerror keys.
      */
-    protected function get_module_timestamp_max_limit(\DateTimeInterface $starttime, $max) {
+    protected function get_timestamp_max_limit(\DateTimeInterface $starttime, $max) {
         // We're doing a similar calculation here as we are for the minimum
         // day timestamp. See the explanation above.
-        $values;
+        $values = [];
         $timestamp = $max[0];
         $errorstring = $max[1];
         $maxdate = (new \DateTimeImmutable())->setTimestamp($timestamp);
@@ -326,4 +328,28 @@ class calendar_event_exporter extends event_exporter_base {
         $values['maxdayerror'] = $errorstring;
         return $values;
     }
+
+    /**
+     * Get the correct minimum midnight day limit based on the event start time
+     * and the module's minimum timestamp limit.
+     *
+     * @param DateTimeInterface $starttime The event start time
+     * @param array $min The module's minimum limit for the event
+     * @return array Returns an array with mindaytimestamp and mindayerror keys.
+     */
+    protected function get_module_timestamp_min_limit(\DateTimeInterface $starttime, $min) {
+        return $this->get_timestamp_min_limit($starttime, $min);
+    }
+
+    /**
+     * Get the correct maximum midnight day limit based on the event start time
+     * and the module's maximum timestamp limit.
+     *
+     * @param DateTimeInterface $starttime The event start time
+     * @param array $max The module's maximum limit for the event
+     * @return array Returns an array with maxdaytimestamp and maxdayerror keys.
+     */
+    protected function get_module_timestamp_max_limit(\DateTimeInterface $starttime, $max) {
+        return $this->get_timestamp_max_limit($starttime, $max);
+    }
 }
diff --git a/calendar/tests/calendar_event_exporter_test.php b/calendar/tests/calendar_event_exporter_test.php
index f5a7b9b55e7..86c815d7f38 100644
--- a/calendar/tests/calendar_event_exporter_test.php
+++ b/calendar/tests/calendar_event_exporter_test.php
@@ -38,10 +38,10 @@ require_once(__DIR__ . '/helpers.php');
  */
 class core_calendar_event_exporter_testcase extends advanced_testcase {
     /**
-     * Data provider for the module timestamp min limit test case to confirm
+     * Data provider for the timestamp min limit test case to confirm
      * that the minimum time limit is set correctly on the boundary cases.
      */
-    public function get_module_timestamp_min_limit_test_cases() {
+    public function get_timestamp_min_limit_test_cases() {
         $now = time();
         $todaymidnight = usergetmidnight($now);
         $tomorrowmidnight = $todaymidnight + DAYSECS;
@@ -77,16 +77,16 @@ class core_calendar_event_exporter_testcase extends advanced_testcase {
     }
 
     /**
-     * @dataProvider get_module_timestamp_min_limit_test_cases()
+     * @dataProvider get_timestamp_min_limit_test_cases()
      */
-    public function test_get_module_timestamp_min_limit($starttime, $min, $expected) {
+    public function test_get_timestamp_min_limit($starttime, $min, $expected) {
         $class = \core_calendar\external\calendar_event_exporter::class;
         $mock = $this->getMockBuilder($class)
             ->disableOriginalConstructor()
             ->setMethods(null)
             ->getMock();
         $reflector = new ReflectionClass($class);
-        $method = $reflector->getMethod('get_module_timestamp_min_limit');
+        $method = $reflector->getMethod('get_timestamp_min_limit');
         $method->setAccessible(true);
 
         $result = $method->invoke($mock, $starttime, $min);
@@ -95,10 +95,10 @@ class core_calendar_event_exporter_testcase extends advanced_testcase {
     }
 
     /**
-     * Data provider for the module timestamp min limit test case to confirm
-     * that the minimum time limit is set correctly on the boundary cases.
+     * Data provider for the timestamp max limit test case to confirm
+     * that the maximum time limit is set correctly on the boundary cases.
      */
-    public function get_module_timestamp_max_limit_test_cases() {
+    public function get_timestamp_max_limit_test_cases() {
         $now = time();
         $todaymidnight = usergetmidnight($now);
         $yesterdaymidnight = $todaymidnight - DAYSECS;
@@ -134,16 +134,16 @@ class core_calendar_event_exporter_testcase extends advanced_testcase {
     }
 
     /**
-     * @dataProvider get_module_timestamp_max_limit_test_cases()
+     * @dataProvider get_timestamp_max_limit_test_cases()
      */
-    public function test_get_module_timestamp_max_limit($starttime, $max, $expected) {
+    public function test_get_timestamp_max_limit($starttime, $max, $expected) {
         $class = \core_calendar\external\calendar_event_exporter::class;
         $mock = $this->getMockBuilder($class)
             ->disableOriginalConstructor()
             ->setMethods(null)
             ->getMock();
         $reflector = new ReflectionClass($class);
-        $method = $reflector->getMethod('get_module_timestamp_max_limit');
+        $method = $reflector->getMethod('get_timestamp_max_limit');
         $method->setAccessible(true);
 
         $result = $method->invoke($mock, $starttime, $max);