- date_default_timezone_set: documentation ( source)
- strtotime: documentation ( source)
<?php
date_default_timezone_set("Pacific/Fiji");
$today = strtotime("2014-04-30 04:04");
$close_date = strtotime("2014-04-30 16:00");
if( $today >= $close_date ){
echo "1";
} else {
echo "0";
}