Unexpected difference in dates parsed using yyyy-MM-dd hh:mm:ss format

Question

I\'ve run the below java code to get time difference.

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.         


        

Answer 1

Changing the SimpleDateFormat pattern to yyyy-MM-dd HH:mm:ss fixes the issues.

This happens because in the yyyy-MM-dd hh:mm:ss case, 12 is evaluated as 0.