Java: Time Format Precison

Question

I have a number that is time in milliseconds. How do I display it in

Hour:mm:ss:+ 2 or 3 decimals

Look at SimpleDateFormat: http://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html — Eng.Fouad, Feb 29 '12 at 19:21
possible duplicate of [java convert milliseconds to time format](http://stackoverflow.com/questions/4142313/java-convert-milliseconds-to-time-format) — Brian Roach, Feb 29 '12 at 19:23

Peter Lawrey · Accepted Answer · 2012-02-29T19:36:35.177

6

Do you mean with?

long timeInMillis = 
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS");
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
String text = sdf.format(new Date(timeInMillis));

or you can build the string yourself

long timeInMillis = 3032;
String text = String.format("%d:%02d:%02d.%03d", 
        timeInMillis / 3600000,
        timeInMillis / 60000 % 60,
        timeInMillis / 1000 % 60,
        timeInMillis % 1000);
System.out.println(text);

prints

0:00:03.032

edited Feb 29 '12 at 19:36

answered Feb 29 '12 at 19:21

Peter Lawrey

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"Dates" have milli-second resolution and are recorded in milli-seconds. – Peter Lawrey Feb 29 '12 at 19:28
if I input 3032, the output is 01:00:03:032 ...where did the 1 came from?? – Pew Labs Feb 29 '12 at 19:31
Ok so after research it depends where I live. I dont want my game to output 1 more hour because i live in Europe. – Pew Labs Feb 29 '12 at 19:35
1

Sorry, the timezone can cause problems. You don't have to use simple date format. – Peter Lawrey Feb 29 '12 at 19:37
You can calculate it yourself. – Peter Lawrey Feb 29 '12 at 19:40

Java: Time Format Precison

1 Answers1