- date_default_timezone_set: documentation ( source)
- date: documentation ( source)
<?php
date_default_timezone_set('UTC');
$time = "1414802161";
$utc = "UTC";
$est = "America/New_York";
$timezone_utc = new DateTimeZone($utc);
$iso_utc = date("Y-m-d H:i:s", $time);
$time_utc = new DateTime($iso_utc, $timezone_utc);
$time_utc->setTimezone($timezone_utc);
echo("UTC:" . $time_utc->getTimestamp() . "\n");
$timezone_est = new DateTimeZone($est);
$iso_est = date("Y-m-d H:i:s", $time);
$time_est = new DateTime($iso_est, $timezone_est);
$time_est->setTimezone($timezone_est);
echo("EST:" . $time_est->getTimestamp() . "\n");