Get Time till Christmas using Joda Time

Question

I need to calculate the time till Christmas in milliseconds. I'm using joda time and I tried using Period, but after wasting a lot of time on Google, I realized that this is wrong, and I could calculate milliseconds. However, my implementation is incorrect and I'm getting wrong results.

My code:

DateTime start = new DateTime(DateTime.now());
DateTime end = new DateTime(2012, 12, 25, 0, 0, 0 ,0);
org.joda.time.Duration duration = new Period(end, start).toDurationFrom(new Instant());
int millis = (int) DateTimeUtils.getDurationMillis(duration);
Log.d("Millis", String.valueOf(millis));

I tried looking at the Joda Time Documentation, but I could not find an answer.

Answer 1

To just calculate milliseconds, it's easy - no need to go via a Period at all.

long milliseconds = end.getMillis() - start.getMillis();

(It's not clear why you're calling new DateTime(DateTime.now()) by the way - just DateTime.now() will suffice.)

EDIT: It works fine for me:

import org.joda.time.*;

public class Test {
    public static void main(String[] args) {
        DateTime start = DateTime.now();
        DateTime end = new DateTime(2012, 12, 25, 0, 0, 0, 0);
        System.out.println(end.getMillis() - start.getMillis());
    }
}