Conversion from Unix Time to Java Calendar

Question

The following is driving me crazy, why am I getting the wrong calendar date when converting Unix Time 1386230874 using the code below!!

This should be Thu Dec 5 19:07:54 2013

Output:

Comment posted on:Sat Jan 17 11:03:50 EST 1970

Code:

Calendar facebook_created_time_calendar = Calendar.getInstance(TimeZone.getTimeZone("Australia/Sydney"));    
facebook_created_time_calendar.setTimeInMillis(1386230874);
out.print("Comment posted on:");
out.println(facebook_created_time_calendar.getTime());

Answer 1

Java works with millisecond timestamps, while Unix time stamps are typically measured in seconds. Multiply the Unix timestamp by 1000L to get the right time.