<?php
$now = new DateTime();
echo 'Now: ', $now->format('Y-m-d H:i:s'), PHP_EOL;
$hms = new DateInterval(
'PT'.$now->format('H').'H'.
$now->format('i').'M'.
$now->format('s').'S'
);
$date = new DateTime('6 weekdays');
echo '+6 weekdays: ', $date->format('Y-m-d H:i:s'), PHP_EOL;
$date->add($hms);//add hours here again
echo 'Fixed H:i:s bit ==> ', $date->format('Y-m-d H:i:s');
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