BUG: Time Picker End time not auto changing properly after 12:00PM Start

Chrome, OS X MAC

User chooses a start time and the end time should auto select 15 min later (great feature)

Works for times with start time before 11:45am

HOWEVER if 12:00pm or beyond is selected, the end time will be auto selected to 12:00pm

I’m not quite understanding how your function works, but your bug is probably in this function:

thank you

admin/scripts/admin.js

var $form   = $('#business-hours');
                jQuery(document).on("change", ".bup_select_start", function(e) {
                //$('.bup_select_start').on('change', function () {

                        var $row = $(this).parent(),
                                $end_select = $('.bup_select_end', $row),
                                $start_select = $(this);

                        if ($start_select.val()) {
                                $end_select.show();
                                $('span', $row).show();

                                var start_time = $start_select.val();

                                $('span > option', $end_select).each(function () {
                                        $(this).unwrap();
                                });

                                // Hides end time options with value less than in the start time
                                $('option', $end_select).each(function () {
                                        if ($(this).val() <= start_time) {
                                                $(this).wrap("<span>").parent().hide();
                                        }
                                });

                                if (start_time >= $end_select.val()) {
                                        $('option:visible:first', $end_select).attr('selected', true);
                                }

                        } else { // OFF

                                $end_select.hide();
                                $('span', $row).hide();
                        }

                }).each(function () {
                        var $row = $(this).parent(),
                                $end_select = $('.bup_select_end', $row);

                        $(this).data('default_value', $(this).val());
                        $end_select.data('default_value', $end_select.val());

                        // Hides end select for "OFF" days
                        if (!$(this).val()) {
                                $end_select.hide();
                                $('span', $row).hide();
                        }
                }).trigger('change');

https://wordpress.org/plugins/booking-ultra-pro/