C# Deserialization of JSON data - date problem

[Member 10975497]

I've always had a problem with dates, whether it's PHP or C#... And so the program is to use data in the dd.MM.yyyy format And YYY-MM-DD data comes from the API And there is a problem to reconcile it. The data reads correctly from the API. And then it gets shitty. For me, USER DATA should return what I expect, i.e. dd.MM.yyyy but how to make him do it? before deserialization is: Response from the server: [{"id":"1","date":"2016-01-08" User Data from JSON: 0001-01-01, Duration: 0000

private async Task>> GetBlogPostsAsync()
{
System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
var blogPosts = new Dictionary>();

        try
        {
            var client = new RestClient("https://mojlink/");
            var request = new RestRequest("api.php?action=get\_posts", Method.Get);
            var response = await client.ExecuteAsync(request);

            Console.WriteLine("Odpowiedź z serwera:");
            Console.WriteLine(response.Content);

            if (response.StatusCode == HttpStatusCode.OK)
            {
                // Sprawdź, czy odpowiedź zawiera poprawne dane JSON
                if (!string.IsNullOrWhiteSpace(response.Content))
                {
                    var posts = JsonConvert.DeserializeObject\>(response.Content);

                    foreach (var post in posts)
                    {
                        var jsonDate = post.Date.ToString("yyyy-MM-dd");
                        Console.WriteLine($"Data z JSON: {jsonDate}, Czas trwania: {post.Duration}");

                        if (DateTime.TryParseExact(jsonDate, "yyyy-MM-dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime parsedDate))
                        {
                            if (!blogPosts.ContainsKey(parsedDate))
                            {
                                blogPosts.Add(parsedDate, new List());
                            }
                            blogPosts\[parsedDate\].Add(post.Duration);
                        }
                        else
                        {
                            // Jeśli nie udało się sparsować daty, zapisz informację do logów
                            Console.WriteLine($"Nieprawidłowy format daty: {post.Date}")