Thread: Calculating when the condition is during a time frame

I Am writing my first big java project, and I have a fairly simple question.

How can I calculate (using java.util.Calendar) whether a condition is during a space of time, say whether or not its during school hours.

This is what i have so far...

private void autoSound() {
		  Calendar schoolStart = Calendar.getInstance();
		  Calendar schoolEnd = Calendar.getInstance();
		  schoolStart.clear();
		  schoolEnd.clear();
		  schoolStart.set(year, month, day, 7, 30);
		  schoolEnd.set(year, month, day, 18, 25); //14
		  if(soundy != 2) {
			  return;
		  }
		  else {  
		  if(current.before(schoolStart) == true || current.after(schoolEnd) == true) { //TODO: Fix during school calculation
				  sound = true;
			  }
			  else {
				  sound = false;
			  }
		  System.out.println(sound);
	  }
	 }

Current is uptated like so just before this...

 private void advanceTime() {
			Calendar Now = Calendar.getInstance();
			year = Now.get(Calendar.YEAR);
			day = Now.get(Calendar.DATE);
			month = Now.get(Calendar.MONTH)+ 1;
			hour = Now.get(Calendar.HOUR);
			min = Now.get(Calendar.MINUTE);
			days1 = Now.get(Calendar.DAY_OF_WEEK);
			current.clear();
			current.set(year, month, day, hour, min);
			if(hour == 0) {
				hour = 12;
			}
		}