Java，Javascript和PHP之间的差异，用于格式化相同的UNIX时间戳

Date time zone: Asia/Kolkata.
Time Stamp: 1448620722807.

Below scripts have been executed on the same system.

Java Code

System.out.println(new Date(1448620722807L)); //Fri Nov 27 10:38:42 GMT 2015

JavaScript Code

console.log(new Date(1448620722807)); //Fri Nov 27 2015 16:08:42 GMT+0530 (India Standard Time)

PHP Code:

//date_default_timezone_set("Asia/Calcutta");
date_default_timezone_set("Asia/Kolkata");
echo date_default_timezone_get(). '<br/>'; // Asia/Kolkata
echo date('d-m-Y h:i:s:A',1448620722807); // 22-07-2008 09:57:35:PM

Java and JavaScript gives the expected results. Am I missing something for PHP?

Javascript (and apparently Java as well, I don't know) handle timestamps as milliseconds, while PHP uses seconds. The correct value for PHP is 1448620722807 / 1000 for the same timestamp.