public Clinic(){
		session[0] = new GregorianCalendar();
		session[1] = new GregorianCalendar();
		session[2] = new GregorianCalendar();
		session[3] = new GregorianCalendar();
		nonPeakHr[0] = new GregorianCalendar();
		nonPeakHr[1] = new GregorianCalendar();
		nonPeakHr[2] = new GregorianCalendar();
		nonPeakHr[3] = new GregorianCalendar();
	}