Change the default time format into 24 hor in BP Business Profile

24hour-time-format.php

<?php
/**
 * Change business hr in 24hr format
 */
function wbcom_business_work_hour_24_hr_format( $work_hours ) {
    $work_hours = array(
        '00:00' => '00:00',
        '00:15' => '00:15',
        '00:30' => '00:30',
        '00:45' => '00:45',
        '01:00' => '1:00',
        '01:15' => '1:15',
        '01:30' => '1:30',
        '01:45' => '1:45',
        '02:00' => '2:00',
        '02:15' => '2:15',
        '02:30' => '2:30',
        '02:45' => '2:45',
        '03:00' => '3:00',
        '03:15' => '3:15',
        '03:30' => '3:30',
        '03:45' => '3:45',
        '04:00' => '4:00',
        '04:15' => '4:15',
        '04:30' => '4:30',
        '04:45' => '4:45',
        '05:00' => '5:00',
        '05:15' => '5:15',
        '05:30' => '5:30',
        '05:45' => '5:45',
        '06:00' => '6:00',
        '06:15' => '6:15',
        '06:30' => '6:30',
        '06:45' => '6:45',
        '07:00' => '7:00',
        '07:15' => '7:15',
        '07:30' => '7:30',
        '07:45' => '7:45',
        '08:00' => '8:00',
        '08:15' => '8:15',
        '08:30' => '8:30',
        '08:45' => '8:45',
        '09:00' => '9:00',
        '09:15' => '9:15',
        '09:30' => '9:30',
        '09:45' => '9:45',
        '10:00' => '10:00',
        '10:15' => '10:15',
        '10:30' => '10:30',
        '10:45' => '10:45',
        '11:00' => '11:00',
        '11:15' => '11:15',
        '11:45' => '11:45',
        '12:00' => '12:00',
        '12:15' => '12:15',
        '12:30' => '12:30',
        '12:45' => '12:45',
        '13:00' => '13:00',
        '13:15' => '13:15',
        '13:30' => '13:30',
        '13:45' => '13:45',
        '14:00' => '14:00',
        '14:15' => '14:15',
        '14:30' => '14:30',
        '14:45' => '14:45',
        '15:00' => '15:00',
        '15:15' => '15:15',
        '15:30' => '15:30',
        '15:45' => '15:45',
        '16:00' => '16:00',
        '16:15' => '16:15',
        '16:30' => '16:30',
        '16:45' => '16:45',
        '17:00' => '17:00',
        '17:15' => '17:15',
        '17:30' => '17:30',
        '17:45' => '17:45',
        '18:00' => '18:00',
        '18:15' => '18:15',
        '18:30' => '18:30',
        '18:45' => '18:45',
        '19:00' => '19:00',
        '19:15' => '19:15',
        '19:30' => '19:30',
        '19:45' => '19:45',
        '20:00' => '20:00',
        '20:15' => '20:15',
        '20:30' => '20:30',
        '20:45' => '20:45',
        '21:00' => '21:00',
        '21:15' => '21:15',
        '21:30' => '21:30',
        '21:45' => '21:45',
        '22:00' => '22:00',
        '22:15' => '22:15',
        '22:30' => '122:30',
        '22:45' => '22:45',
        '23:00' => '23:00',
        '23:15' => '23:15',
        '23:30' => '23:30',
        '23:45' => '23:45',
    );
    return $work_hours;
}
add_filter( 'bp_business_profile_work_hours', 'wbcom_business_work_hour_24_hr_format', 10, 1 );
?>