adding time increment for DateRangePicker

main/inc/lib/formvalidator/Element/DateRangePicker.php

@@ -182,12 +182,17 @@ class DateRangePicker extends HTML_QuickForm_text
             $timePicker = 'false';
         }
 
+        $timeIncrement = 30;
+        if(api_get_configuration_value('timepicker_increment')){
+            $timeIncrement = api_get_configuration_value('timepicker_increment');
+        }
+
         // timeFormat: 'hh:mm'
         $js .= "<script>
             $(function() {
                 $('#$id').daterangepicker({
                     timePicker: $timePicker,
-                    timePickerIncrement: 30,
+                    timePickerIncrement: $timeIncrement,
                     timePicker24Hour: true,
                     $defaultDates
                     $maxDate

main/install/configuration.dist.php

@@ -1666,3 +1666,6 @@ VALUES (21, 13, 'send_notification_at_a_specific_date', 'Send notification at a
 // You need add a new option called "confirmation" to the registration settings
 //INSERT INTO settings_options (variable, value, display_text) VALUES ('allow_registration', 'confirmation', 'MailConfirmation');
 // ------ (End) Custom DB changes
+
+//Allows to add increment in minutes to the date range component timepicker, example: 5,10,30 minutes
+//$_configuration['timepicker_increment'] = 5;