I am using this below function for utc timestamp to date conversation but its giving me wrong answer.
echo date('Y-m-d H:i:s',1379658966473);
Its give me in returns
45689-08-26 01:47:53
But actually answer is
GMT: Fri, 20 Sep 2013 06:36:06 GMT
Your time zone: 20 September 2013 12:06:06 PM GMT+5.5
which i got from http://www.epochconverter.com/ online converter website which is doing right
Your timestamp is in a miliseconds format. To get regular unix timestamp, divide it by 1000:
$timestamp = 1379658966473 / 1000;
echo date('Y-m-d H:i:s', $timestamp);
your timestamp is for microtime, date function require a simple timestamp, you need to use time() function instead of microtime()