using System;

​

public class Program

{

    public static void Main()

    {

        // Declare two dates

        var prevDate = new DateTime(2021, 7, 15); //15 July 2021

        var today = DateTime.Now;

        Console.WriteLine("prevDate: {0}", prevDate);

        Console.WriteLine("today: {0}", today);

​

        //get difference of two dates

        var diffOfDates = today.Subtract(prevDate);

        Console.WriteLine("Difference in Timespan: {0}", diffOfDates);

        Console.WriteLine("Difference in Days: {0}", diffOfDates.Days);

        Console.WriteLine("Difference in Hours: {0}", diffOfDates.Hours);

        Console.WriteLine("Difference in Miniutes: {0}", diffOfDates.Minutes);

        Console.WriteLine("Difference in Seconds: {0}", diffOfDates.Seconds);

        Console.WriteLine("Difference in Milliseconds: {0}", diffOfDates.Milliseconds);

        Console.WriteLine("Difference in Ticks: {0}", diffOfDates.Ticks);

    }

}