What potential pitfalls should be considered when using ceil() and floor() functions for time rounding in PHP?

When using ceil() and floor() functions for time rounding in PHP, one potential pitfall to consider is that these functions round up or down to the nearest whole number. This can lead to inaccuracies when rounding time values, as time should be rounded to the nearest minute or second. To solve this issue, it's recommended to convert the time value to seconds, round it using ceil() or floor(), and then convert it back to the desired time format.

$time = "14:36:27";
list($hours, $minutes, $seconds) = explode(":", $time);
$total_seconds = ($hours * 3600) + ($minutes * 60) + $seconds;

$rounded_seconds = ceil($total_seconds / 60) * 60; // Round to the nearest minute
$rounded_time = gmdate("H:i:s", $rounded_seconds);

echo $rounded_time;