In the last example, conversion from seconds to Hour, Minutes, Seconds is wrong.This is the correct verion:<?php$si = date_sun_info(strtotime('2022-08-26'), 50.45, 30.52);$diff = $si['sunset'] - $si['sunrise']; # $diff is measured in seconds.echo "Length of day: ", floor($diff / 3600), "h", floor(($diff % 3600) / 60), "m", floor($diff % 60), "s\n";?>Output: Length of day: 13h53m15s