Stopwatch stRoot = new Stopwatch();
            stRoot.Start();
            try
            {                
                var request = (HttpWebRequest)WebRequest.Create(ServiceUrl);
                request.Timeout = 300;
                request.Proxy = null;

                using (var response = (HttpWebResponse)request.GetResponse())
                {
                    using (var reader = new StreamReader(response.GetResponseStream()))
                    {
                        Stopwatch st = new Stopwatch();
                        st.Start();
                        var t = reader.ReadToEnd();
                        st.Stop();
                        _logger.LogDebug("ReadToEnd " + st.Elapsed.TotalMilliseconds.ToString("f0"));
                        st.Reset();
                        var result = JsonConvert.DeserializeObject<some>(t);
                        return result;
                    }
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.Message, ex);
            }
            finally
            {
                stRoot.Stop();
                _logger.LogDebug("Root " + stRoot.Elapsed.TotalMilliseconds.ToString("f0"));
                stRoot.Reset();
            }

var task = Task.run(()=> service);
var delay = Task.Delay(3850);
Task.WhenAny(delay, task ).Wait();
if (task.IsCompleted ){
//todo
}