I have a C# class and need help. I don't need the work complete. Just some help getting this going. This is a console program. Any help would be appreciated. Here is what I have so far:

static void Main(string[] args)
        {
            string dayInput;
            int inputStartTime;
            int inputEndTime;

            string _day = GetDay(dayInput);
            int _sTime = GetStartTime(inputStartTime);
            GetEndTime(inputEndTime);
            GetLength(inputStartTime, inputEndTime);
            ComputeRate(dayInput, inputStartTime, inputEndTime, length);

            Console.Read();
        }

        static string GetDay(string _day)

          {
            //string _day;
                                   
           Console.WriteLine("Please Provide the Day of the Week - ex. Mo Tu We Th Fr Sa Su");
           string dayInput = Console.ReadLine();
           dayInput = _day;
           dayInput = dayInput.ToLower();
            
            Console.Clear();
          }       
        
        
        static int GetStartTime(int _sTime)
        {
            //int _sTime;
            //string inputStartTime;

            Console.WriteLine("Enter the Start Time of Your Call in Military Time - ex. 1:30 pm = 1330");
            string input = Console.ReadLine();
            int inputStartTime = int.Parse(input);
            int result = GetStartTime (inputStartTime);
            Console.WriteLine(result);
            

            Console.Clear();
        
        }
        
        static int GetEndTime(int _eTime)
        {
              //int _eTime;
              //string inputEndTime;

              Console.WriteLine("Enter the End Time of Your Call in Military Time - ex. 1:30 pm = 1330");
              string input = Console. ReadLine();
              int inputGetEndTime = int.Parse(input);
              int result = GetEndTime (inputGetEndTime);
              Console.WriteLine(result);

            Console.Clear();
        
        }
        
        static int GetLength(int _sTime, int _eTime)
        {
        int sModTime = _sTime % 100;
        int eModTime = _eTime % 100;
        int sHour = (_sTime – sModTime) / 100;
        int eHour = (_eTime – eModTime) / 100;
        int differenceHours = eHour – sHour;
        int differenceMinutes = eModTime – sModTime;
        int length = (differenceHours * 60) + differenceMinutes;
        return length;
           
        }
        
        static int ComputeRate(string _day, int _sTime, int _eTime, int _length)
        {
            double rate1 = .30;
            double rate2 = .15;
            double rate3 = .10;
            //double _length;
            //double total1;
         
     
             if (_day == mo, tu, we, th, fr && _sTime <= 700 && _sTime >=2100);
            int total1 = double.Parse();
            _length = double.Parse();
            //rate1 = int.Parse(rate);
            total1 = _length * rate1;
                            
            Console.WriteLine("Your call cost " + total1);

        }
        
        static void DisplayErrorMessage()
        {
        //write code here

        }