function create_time_range($start, $end, $interval='30 mins', $format='12'){
	$startTime=strtotime($start);
	$endTime=strtotime($end);
	$returnTimeFormat=($format=='24')?'g:i':'G:i';

	$current=time();
	$addTime=strtotime('+'.$interval,$current);
	$diff=$addTime-$current;

	$times=array();
	while ($startTime<$endTime) {
		$times[]=date($returnTimeFormat,$startTime);

<div class="table-responsive">
                <table class="table table-bordered table-hoverable table-striped" id="tblClassScheduler">
                    <thead>
                       <tr>
                         <?php
                          $days=array("Monday"=>1,"Tuesday"=>2,"Wednesday"=>3,"Thursday"=>4,"Friday"=>5,"Saturday"=>6,"Sunday"=>7);