php conver time code example
Example 1: time to string in php
<?php
$date = '27/06/2020, 04:42:43 PM';
$date = str_replace('/', '-', $date);
echo date('F j, Y, g:i a',strtotime($date));
// output : June 27, 2020, 4:42 pm
?>
Example 2: php start of day epoch
$beginOfDay = strtotime("today", $timestamp);
$endOfDay = strtotime("tomorrow", $beginOfDay) - 1;