public static String timeToString(long period){
  period/=10;
  final long milsecs=period % 100;
  period/=100;
  final long secs=period % 60;
  period/=60;
  final long mins=period % 60;
  period/=60;
  final long hours=period;
  return String.format("%02d:%02d:%02d.%02d",hours,mins,secs,milsecs);
}

public static String timeToString ( long period ) { period /= 10 ; final long milsecs = period % 100 ; period /= 100 ; final long secs = period % 60 ; period /= 60 ; final long mins = period % 60 ; period /= 60 ; final long hours = period ; return String . format ( "%02d:%02d:%02d.%02d" , hours , mins , secs , milsecs ) ; }
converts millisecond count to hh : mm : ss . ss where the seconds are reported with 0 . 01 precision
