Long story short
Is there an official, un-deprecated timezone that PHP5 recognizes for Eastern STANDARD time--not Eastern DAYLIGHT time?
echo ' Format ' . date('m/d/Y H:i:s a') ;
//maketime function- mktime(hour,minute,second,month,day,year,is_dst)
$EasternTimeStamp =mktime(date('H')-6,date('i'),date('s'),date("m"),date("d"),date("Y"));
// date function- date(format, timestamp)
echo 'Format ' . date('m/d/Y H:i:s a',$EasternTimeStamp) ;