CoursePress Pro - Convert time from minutes into hours.

cp_course_time.php

<?php 
add_filter( 'coursepress_unit_time_estimation_minutes_and_seconds_format', 'cp_convert_minutes_to_hours', 10, 2 );
function cp_convert_minutes_to_hours( $time ) {
    
    $get_minutes = explode(":", $time);

    if($get_minutes[0] < 90) return $time;

    $hours = round( ( $get_minutes[0] / 60 ) , 2) ;

    return $hours. ' hours';
}