code: public static long getCurrentTimestampMinusParameters(int numOfWeeks,
  			int numOfDays, int numOfHours, int numOfMinutes, int numOfSeconds) {
  		return getTimestampMinusParameters(System.currentTimeMillis(),
  				numOfWeeks, numOfDays, numOfHours, numOfMinutes, numOfSeconds);
  	}
docs: Gets current timestamp minus parameters.
  
  @param numOfWeeks   the num of weeks
  @param numOfDays    the num of days
  @param numOfHours   the num of hours
  @param numOfMinutes the num of minutes
  @param numOfSeconds the num of seconds
  @return the current timestamp minus parameters