- time: documentation ( source)
<?php
$timestamp = time();
echo $timestamp, PHP_EOL;
$dateTime = new DateTime('@' . $timestamp);
echo $dateTime->getTimestamp(), PHP_EOL, $dateTime->format('H:i:sP'), PHP_EOL;
$dateTime = new DateTime('@' . $timestamp, new DateTimeZone());
echo $dateTime->getTimestamp(), PHP_EOL, $dateTime->format('H:i:sP'), PHP_EOL;