diff --git a/Civi/ActionSchedule/RecipientBuilder.php b/Civi/ActionSchedule/RecipientBuilder.php
index c52f64adbb65..e04a4fbe3466 100644
--- a/Civi/ActionSchedule/RecipientBuilder.php
+++ b/Civi/ActionSchedule/RecipientBuilder.php
@@ -409,6 +409,8 @@ protected function prepareStartDateClauses() {
       else {
         $startDateClauses[] = "DATE_SUB(!casNow, INTERVAL 1 DAY ) <= {$date}";
       }
+      $startDateClauses[] = "(effective_start_date IS NULL OR effective_start_date <= {$date})";
+      $startDateClauses[] = "(effective_end_date IS NULL OR effective_end_date > {$date})";
     }
     elseif ($actionSchedule->absolute_date) {
       $startDateClauses[] = "DATEDIFF(DATE('!casNow'),'{$actionSchedule->absolute_date}') = 0";
diff --git a/tests/phpunit/CRM/Core/BAO/ActionScheduleTest.php b/tests/phpunit/CRM/Core/BAO/ActionScheduleTest.php
index 21d96074e50a..952a83ba83f3 100644
--- a/tests/phpunit/CRM/Core/BAO/ActionScheduleTest.php
+++ b/tests/phpunit/CRM/Core/BAO/ActionScheduleTest.php
@@ -153,6 +153,8 @@ public function setUp(): void {
       'start_action_offset' => '1',
       'start_action_unit' => 'day',
       'subject' => '1-Day (non-repeating) (about {activity.activity_type})',
+      'effective_start_date' => '2012-06-14 00:00:00',
+      'effective_end_date' => '2012-06-15 00:00:00',
     ];
     $this->fixtures['sched_activity_1day_r'] = [
       'name' => 'One_Day_Phone_Call_Notice_R',
@@ -183,6 +185,7 @@ public function setUp(): void {
       'start_action_offset' => '1',
       'start_action_unit' => 'day',
       'subject' => '1-Day (repeating) (about {activity.activity_type})',
+      'effective_end_date' => '2012-06-14 01:00:01',
     ];
     $this->fixtures['sched_activity_1day_r_on_abs_date'] = [
       'name' => 'One_Day_Phone_Call_Notice_R',
@@ -2065,6 +2068,56 @@ public function testEventTypeStartDate(): void {
         'recipients' => [],
       ],
     ]);
+
+    // CASE 2: Create a schedule reminder which was created 1 day after the schdule day,
+    // so it shouldn't deliver reminders schedule to send 1 week before the event start date
+    $actionSchedule = $this->fixtures['sched_eventtype_start_1week_before'];
+    $actionSchedule['entity_value'] = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $participant->event_id, 'event_type_id');
+    $actionSchedule['effective_start_date'] = '20120309000000';
+    $this->callAPISuccess('action_schedule', 'create', $actionSchedule);
+    // end_date=2012-06-15 ; schedule is 2 weeks before end_date
+    $this->assertCronRuns([
+      [
+        // 2 weeks before
+        'time' => '2012-03-02 01:00:00',
+        'recipients' => [],
+      ],
+      [
+        // 1 week before
+        'time' => '2012-03-08 01:00:00',
+        'recipients' => [],
+      ],
+      [
+        // And then nothing else
+        'time' => '2012-03-16 01:00:00',
+        'recipients' => [],
+      ],
+    ]);
+
+    // CASE 3: Create a schedule reminder which is created less then a week before the event start date,
+    // so it should deliver reminders schedule to send 1 week before the event start date, set the effective end date just an hour later the reminder delivery date
+    $actionSchedule = $this->fixtures['sched_eventtype_start_1week_before'];
+    $actionSchedule['entity_value'] = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $participant->event_id, 'event_type_id');
+    $actionSchedule['effective_end_date'] = '20120309010000';
+    $this->callAPISuccess('action_schedule', 'create', $actionSchedule);
+    // end_date=2012-06-15 ; schedule is 2 weeks before end_date
+    $this->assertCronRuns([
+      [
+        // 2 weeks before
+        'time' => '2012-03-02 01:00:00',
+        'recipients' => [],
+      ],
+      [
+        // 1 week before
+        'time' => '2012-03-08 01:00:00',
+        'recipients' => [['test-event@example.com']],
+      ],
+      [
+        // And then nothing else
+        'time' => '2012-03-16 01:00:00',
+        'recipients' => [],
+      ],
+    ]);
   }
 
   /**