منتدى فيجوال بيسك لكل العرب | منتدى المبرمجين العرب

Public Class Form1


   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       MsgBox(GetNistTime)
   End Sub


   Public Function GetNistTime() As DateTime
       Dim dateTime__1 As DateTime = DateTime.MinValue

       Dim request As Net.HttpWebRequest = _
           DirectCast(Net.WebRequest.Create("http://nist.time.gov/actualtime.cgi?lzbc=siqm9b") _
               , Net.HttpWebRequest)
       request.Method = "GET"
       request.Accept = "text/html, application/xhtml+xml, */*"
       request.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)"
       request.ContentType = "application/x-www-form-urlencoded"
       request.CachePolicy = _
           New Net.Cache.RequestCachePolicy(Net.Cache.RequestCacheLevel.NoCacheNoStore)
       'No caching
       Dim response As Net.HttpWebResponse = _
           DirectCast(request.GetResponse(), Net.HttpWebResponse)
       If response.StatusCode = Net.HttpStatusCode.OK Then
           Dim stream As New IO.StreamReader(response.GetResponseStream())
           Dim html As String = stream.ReadToEnd()
           '<timestamp time=\"1395772696469995\" delay=\"1395772696469995\"/>
           Dim time As String = _
               System.Text.RegularExpressions.Regex.Match(html, "(?<=\btime="")[^""]*").Value
           Dim milliseconds As Double = Convert.ToInt64(time) / 1000.0
           dateTime__1 = New DateTime(1970, 1, 1).AddMilliseconds(milliseconds).ToLocalTime()
       End If

       Return dateTime__1
   End Function


End Class