using System;

public class Program

{

    public static void Main()

    {

        var path = "s3:/Banyan/bhs/{YYYY-MM-DD}";

        var format_start_index = path.IndexOf("{");

        var format_end_index = path.IndexOf("}");

        var current_time = DateTime.UtcNow;

        var format = path.Substring(format_start_index+1, format_end_index-format_start_index-1).Replace('Y','y').Replace('m', 'M').Replace('D', 'd');

        var string_to_replace = path.Substring(format_start_index, format_end_index-format_start_index+1);

        var formatted_date = current_time.ToString(format);

        var formatted_path = path.Replace(string_to_replace, formatted_date);

        Console.WriteLine(format);

        Console.WriteLine(string_to_replace);

        Console.WriteLine(formatted_date);

        Console.WriteLine(formatted_path);

    }

}