date

<?php
$today     = new DateTime();
$event     = new DateTime('2025-12-31 20:30');
$countdown = $today->diff($event);

$earlybird = new DateTime();
$interval  = new DateInterval('P1M');
$earlybird->add($interval);
?>

<p><b>Today:</b><br>
<?= $today->format('Y-m-d, g:i a, D') ?>
<p><b>Countdown to event:</b><br>
<?= $countdown->format('%y years %m months %d days') ?>
</p>
<p><b>Earlybird by:</b><br>
<?= $earlybird->format('D d M Y, g:i a') ?>
</p>