code: public static Double internalToTime(TimeUnit unit, long internalTime)
  	{
  		return Math.round(internalTime * TimeUnit.nanosecond.getValue()
  				/ unit.getValue() * PRECISION)
  				/ PRECISION;
  	}
docs: Utility method to convert the internal time to the given unit.
  
  @param unit
  The unit to convert the internal time to
  @param internalTime
  The internal time
  @return The internal time representation of the parameter