(VBScript) Get Current Date/Time from NIST Time Server

Demonstrates using Chilkat Socket to connect to an NIST time server and (using the old Time Protocol (RFC 868)), will read the current GMT time.

Note: This is not necessarily the very best means for getting the current date/time. The most commonly used time protocol is the Network Time Protocol (RFC-1305).

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Socket")
set socket = CreateObject("Chilkat.Socket")

' Connect to an NIST time server and read the current date/time
maxWaitMs = 4000
useTls = 0
success = socket.Connect("time-c.nist.gov",37,useTls,maxWaitMs)
If (success <> 1) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

' The time server will send a big-endian 32-bit integer representing
' the number of seconds since since 00:00 (midnight) 1 January 1900 GMT.
' The ReceiveInt32 method will receive a 4-byte integer, but returns
' 1 or 0 to indicate success.  If successful, the integer
' is obtained via the ReceivedInt property.
bigEndian = 1
success = socket.ReceiveInt32(bigEndian)
If (success <> 1) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CkDateTime")
set dt = CreateObject("Chilkat.CkDateTime")
success = dt.SetFromNtpTime(socket.ReceivedInt)

' Show the current local date/time
bLocalTime = 1
outFile.WriteLine("Current local date/time: " & dt.GetAsRfc822(bLocalTime))

maxWaitMs = 10
success = socket.Close(maxWaitMs)

outFile.Close