Getting difference between two dates Android

You can use getRelativeTimeSpanString(). It returns a string like “1 minute ago”. Here is a real simple example that tells how long the application has been running.

private long mStartTime;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    mStartTime = System.currentTimeMillis();
}

public void handleHowLongClick(View v) {
    CharSequence cs = DateUtils.getRelativeTimeSpanString(mStartTime);
    Toast.makeText(this, cs, Toast.LENGTH_LONG).show();
}