Milliseconds and nanoseconds in time format

Question

This is my code:

long currentTime = System.currentTimeMillis();
Date date = new Date(currentTime); // if you really have long
String result = new SimpleDateF         


        

Answer 1

You can add milliseconds by adding SSS at the end, such as the format will be HH:mm:ss.SSS.

There is no reference in the SimpleDateFormat to nanoseconds. Usually System.nanoTime() is used for performance debugging and not for display purposes.

Answer 2

String result = new SimpleDateFormat("HH:mm:ss:SSS").format(date);

"HH:mm:ss:SSS" //SSS stands for milliseconds

Check SimpleDateFormat API for more info

Answer 3

String timeStamp = new SimpleDateFormat("dd:MM:yyyy_HH:mm:ss:SSS").format(Calendar.getInstance().getTime());
timeStamp = timeStamp + ":" + System.nanoTime();

This gave me output,

24:03:2014_18:24:09:890:2018826751601473