using System;

using System.Collections.Generic;

public class Program

{

    static Dictionary<TimeChunk, Func<DateTime, int, string>> commands = new () {

        [TimeChunk.Days] = (d, n) => d.AddDays(n).ToString(),

        [TimeChunk.Hours] = (d, n) => d.AddHours(n).ToString(),

    };

    public static void Main()

    {

        Console.WriteLine(DateTime.UtcNow);

        Console.WriteLine(commands[TimeChunk.Days](DateTime.UtcNow,1));

        Console.WriteLine(commands[TimeChunk.Hours](DateTime.UtcNow,1));

    }

}

enum TimeChunk{

    Days,

    Hours

}