using System;

using System.Text.Json;

​

public class Configuration {

    public static Configuration Instance {get;set;} = new Configuration();

    public DateTime DateCreated {get; set;}

    public Configuration()

    {

        DateCreated = DateTime.Now;

    }

}

​

public class SomeObject

{

    public void DoSomething()

    {

        var c = Configuration.Instance;

        Console.WriteLine(JsonSerializer.Serialize(c));

    }

}

​

public class Program

{

    public static void Main(string[] args)

    {

        var c = Configuration.Instance;

        var someObject = new SomeObject();

        Console.WriteLine(JsonSerializer.Serialize(c));

        someObject.DoSomething();

    }

}