如何在C#中获取服务器和客户端之间的延迟？

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

public class UdpServer
{
    private const int Port = 12345;

    public static void Main()
    {
        var ipAddress = IPAddress.Any;
        var endPoint = new IPEndPoint(ipAddress, Port);

        using var udpClient = new UdpClient(endPoint);
        IPEndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);

        while (true)
        {
            var receivedBytes = udpClient.Receive(ref remoteEndPoint);
            var receivedText = Encoding.UTF8.GetString(receivedBytes);

            Console.WriteLine($"Received: {receivedText} from {remoteEndPoint}");

            var response = $"Server time: {DateTime.Now}";
            var responseBytes = Encoding.UTF8.GetBytes(response);

            udpClient.Send(responseBytes, responseBytes.Length, remoteEndPoint);
        }
    }
}

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

public class UdpClient
{
    private const int Port = 12345;
    private const string ServerIp = "127.0.0.1";

    public static void Main()
    {
        var ipAddress = IPAddress.Parse(ServerIp);
        var endPoint = new IPEndPoint(ipAddress, Port);

        using var udpClient = new UdpClient();
        udpClient.Connect(endPoint);

        var request = "Ping";
        var requestBytes = Encoding.UTF8.GetBytes(request);

        udpClient.Send(requestBytes, requestBytes.Length);

        var remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
        var receivedBytes = udpClient.Receive(ref remoteEndPoint);
        var receivedText = Encoding.UTF8.GetString(receivedBytes);

        Console.WriteLine($"Received: {receivedText} from {remoteEndPoint}");

        var responseTime = DateTime.Parse(receivedText.Split(':')[1].Trim());
        var latency = DateTime.Now - responseTime;

        Console.WriteLine($"Latency: {latency.TotalMilliseconds} ms");
    }
}