using System;

public class Program

{

    public static void Main()

    {       

        DateTime initial = new DateTime(2019, 3, 13, 9, 0, 0);

        DateTime final = new DateTime(2019, 3, 13, 10, 0, 0);

​

        bool hasCollision = HasCollision(initial) || HasCollision(final);

        if(!hasCollision){

            hasCollision = BypassCollision(initial, final);

        }

        Console.WriteLine(hasCollision);

    }

    public static bool HasCollision(DateTime candidate) {

        DateTime d1 = new DateTime(2019, 3, 13, 9, 0, 0);

        DateTime d2 = new DateTime(2019, 3, 13, 10, 0, 0);

        bool hasCollision = false;

        if(candidate > d1 && candidate < d2) 

            hasCollision = true;

        return hasCollision;

    }

    public static bool BypassCollision(DateTime candidateInitial, DateTime candidateFinal) {

        DateTime d1 = new DateTime(2019, 3, 13, 9, 0, 0);

        DateTime d2 = new DateTime(2019, 3, 13, 10, 0, 0);

        if(candidateInitial <= d1 && candidateFinal >= d2)

            return true;

        return false;

    }

}