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Get Current Date/Time from NIST Time Server

See more Socket/SSL/TLS Examples

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).

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Local $bSuccess = False

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

$oSocket = ObjCreate("Chilkat.Socket")

; Connect to an NIST time server and read the current date/time
Local $iMaxWaitMs = 4000
Local $bUseTls = False
$bSuccess = $oSocket.Connect("time-c.nist.gov",37,$bUseTls,$iMaxWaitMs)
If ($bSuccess <> True) Then
    ConsoleWrite($oSocket.LastErrorText & @CRLF)
    Exit
EndIf

; 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
; True or False to indicate success.  If successful, the integer
; is obtained via the ReceivedInt property.
Local $bigEndian = True
$bSuccess = $oSocket.ReceiveInt32($bigEndian)
If ($bSuccess <> True) Then
    ConsoleWrite($oSocket.LastErrorText & @CRLF)
    Exit
EndIf

$oDt = ObjCreate("Chilkat.CkDateTime")
$oDt.SetFromNtpTime($oSocket.ReceivedInt)

; Show the current local date/time
Local $bLocalTime = True
ConsoleWrite("Current local date/time: " & $oDt.GetAsRfc822($bLocalTime) & @CRLF)

$iMaxWaitMs = 10
$oSocket.Close($iMaxWaitMs)