trouble trying to display google timestamp with php

Hi all, I am getting a timestamp from google maps. when I display it in javascript it works but gives odd results when I try with php... Maybe there is something different with the google timestamp? regular ts: 1457995288 google ts: 1457914808793 is longer Q: What is different about the google timestamp and how can I display it with php? ------------------------ date_default_timezone_set("America/Los_Angeles"); ---- this works fine (regular ts) $date = date_create(); date_timestamp_set($date, 1457995288); echo date_format($date,"Y/m/d H:i:s"); --- it shows ok = 2016/03/14 15:41:28 ------------ OK but does not work with google map timestamp (LONGER): $date2 = date_create(); date_timestamp_set($date2, 1457914808793); echo date_format($date2,"Y/m/d H:i:s"); -- it shows odd (google longer ts) = 48169/06/24 15:46:33 ------------------- with javascript this works with google timestamp var nowts = new Date(Number(value.timestamp)); and shows like = Sun Mar 14 2016 17:20:08 GMT-0700 (PDT) -- Thanks, Dave - DealTek dealtek@gmail.com [db-16]