diff --git a/classes/Visualizer/Module.php b/classes/Visualizer/Module.php
index c77cfc12..5604ea5d 100644
--- a/classes/Visualizer/Module.php
+++ b/classes/Visualizer/Module.php
@@ -138,7 +138,7 @@ protected function _addAjaxAction( $tag, $method = '', $methodClass = null, $pri
 	 *
 	 * @access protected
 	 * @param string $tag The name of the filter to hook the $method to.
-	 * @param type   $method The name of the method to be called when the filter is applied.
+	 * @param string $method The name of the method to be called when the filter is applied.
 	 * @param int    $priority optional. Used to specify the order in which the functions associated with a particular action are executed (default: 10). Lower numbers correspond with earlier execution, and functions with the same priority are executed in the order in which they were added to the action.
 	 * @param int    $accepted_args optional. The number of arguments the function accept (default 1).
 	 * @return Visualizer_Module
diff --git a/classes/Visualizer/Module/Setup.php b/classes/Visualizer/Module/Setup.php
index d392894d..0599c504 100644
--- a/classes/Visualizer/Module/Setup.php
+++ b/classes/Visualizer/Module/Setup.php
@@ -49,6 +49,7 @@ public function __construct( Visualizer_Plugin $plugin ) {
 
 		$this->_addAction( 'admin_init', 'adminInit' );
 		$this->_addAction( 'init', 'setupCustomPostTypes' );
+		$this->_addFilter( 'cron_schedules', 'custom_cron_schedules' );
 		$this->_addAction( 'plugins_loaded', 'loadTextDomain' );
 		$this->_addFilter( 'visualizer_logger_data', 'getLoggerData' );
 		$this->_addFilter( 'visualizer_get_chart_counts', 'getUsage', 10, 2 );
@@ -209,7 +210,7 @@ public function activate( $network_wide ) {
 	 */
 	private function activate_on_site() {
 		wp_clear_scheduled_hook( 'visualizer_schedule_refresh_db' );
-		wp_schedule_event( strtotime( 'midnight' ) - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS, apply_filters( 'visualizer_chart_schedule_interval', 'hourly' ), 'visualizer_schedule_refresh_db' );
+		wp_schedule_event( strtotime( 'midnight' ) - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS, apply_filters( 'visualizer_chart_schedule_interval', 'visualizer_ten_minutes' ), 'visualizer_schedule_refresh_db' );
 		add_option( 'visualizer-activated', true );
 		$is_fresh_install  = get_option( 'visualizer_fresh_install', false );
 		if ( ! defined( 'TI_CYPRESS_TESTING' ) && false === $is_fresh_install ) {
@@ -281,9 +282,9 @@ public function adminInit() {
 	/**
 	 * Refresh the specific chart from the db.
 	 *
-	 * @param WP_Post $chart The chart object.
-	 * @param int     $chart_id The chart id.
-	 * @param bool    $force If this is true, then the chart data will be force refreshed. If false, data will be refreshed only if the chart requests live data.
+	 * @param WP_Post|null $chart The chart object.
+	 * @param int          $chart_id The chart id.
+	 * @param bool         $force If this is true, then the chart data will be force refreshed. If false, data will be refreshed only if the chart requests live data.
 	 *
 	 * @access public
 	 */
@@ -396,10 +397,11 @@ public function refresh_db_for_chart( $chart, $chart_id, $force = false ) {
 	 * @access public
 	 */
 	public function refreshDbChart() {
-		$schedules = get_option( Visualizer_Plugin::CF_DB_SCHEDULE, array() );
-		if ( ! $schedules ) {
+		$chart_schedules = get_option( Visualizer_Plugin::CF_DB_SCHEDULE, array() );
+		if ( ! $chart_schedules ) {
 			return;
 		}
+
 		if ( ! defined( 'VISUALIZER_DO_NOT_DIE' ) ) {
 			// define this so that the ajax call does not die
 			// this means that if the new version of pro and the old version of free are installed, only the first chart will be updated
@@ -407,22 +409,31 @@ public function refreshDbChart() {
 		}
 
 		$new_schedules = array();
-		$now           = time();
-		foreach ( $schedules as $chart_id => $time ) {
-			$new_schedules[ $chart_id ] = $time;
-			if ( $time > $now ) {
+		$current_time  = time();
+		foreach ( $chart_schedules as $chart_id => $scheduled_time ) {
+
+			// Skip deleted charts.
+			if ( false === get_post_status( $chart_id ) ) {
+				continue;
+			}
+
+			$new_schedules[ $chart_id ] = $scheduled_time;
+
+			// Should we do an update?
+			if ( $scheduled_time > $current_time ) {
 				continue;
 			}
 
-			// if the time is nigh, we force an update.
 			$this->refresh_db_for_chart( null, $chart_id, true );
+
 			// Clear existing chart cache.
 			$cache_key = Visualizer_Plugin::CF_CHART_CACHE . '_' . $chart_id;
 			if ( get_transient( $cache_key ) ) {
 				delete_transient( $cache_key );
 			}
-			$hours                      = get_post_meta( $chart_id, Visualizer_Plugin::CF_DB_SCHEDULE, true );
-			$new_schedules[ $chart_id ] = time() + $hours * HOUR_IN_SECONDS;
+
+			$scheduled_hours            = get_post_meta( $chart_id, Visualizer_Plugin::CF_DB_SCHEDULE, true );
+			$new_schedules[ $chart_id ] = $current_time + $scheduled_hours * HOUR_IN_SECONDS;
 		}
 		update_option( Visualizer_Plugin::CF_DB_SCHEDULE, $new_schedules );
 	}
@@ -443,4 +454,18 @@ public function checkIsExistingUser() {
 		}
 	}
 
+	/**
+	 * Add custom cron schedules.
+	 *
+	 * @param array $schedules The current schedules options.
+	 * @return array The modified schedules options.
+	 */
+	public function custom_cron_schedules( $schedules ) {
+		$schedules['visualizer_ten_minutes'] = array(
+			'interval' => 600,
+			'display'  => __( 'Every 10 minutes', 'visualizer' ),
+		);
+
+		return $schedules;
+	}
 }
diff --git a/tests/test-import.php b/tests/test-import.php
index 384f5724..8a189488 100644
--- a/tests/test-import.php
+++ b/tests/test-import.php
@@ -226,6 +226,16 @@ public function test_db_import() {
 		echo $post->post_content;
 	}
 
+	/**
+	 * Testing cron custom schedule.
+	 *
+	 * @return void
+	 */
+	public function test_custom_cron_schedule() {
+		$schedules = wp_get_schedules();
+		$this->assertArrayHasKey( 'visualizer_ten_minutes', $schedules );
+	}
+
 	/**
 	 * Provide the fileURL for uploading the file
 	 *