Example: Difference Between Two Time Periods in PHP using DateTime class

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<?php
// DIFFERENCE BETWEEN TWO TIME PERIODS in PHP using DateTime class

// Step-1 Define two datetime strings
$start = new DateTime("2025-11-05 10:15:00");
$end = new DateTime("2025-11-13 17:40:25");

// Step-2 Calculate the difference
$interval = $start->diff($end);

// Step-3 Extract hours, minutes, and seconds
$totalHours = ($interval->days * 24) + $interval->h;
$minutes = $interval->i;
$seconds = $interval->s;

// Step-4 Display the result
echo "\nTIME DIFFERENCE: {$totalHours} HOURS, {$minutes} MINUTES, {$seconds} SECONDS";

?>