how to get the current date from the internet

Yashied · April 1, 2015

#Include <StructureConstants.au3>
#Include <Date.au3>

Func _NTP_FT($sServer, $fLocal = True)

;~  http://book.itep.ru/4/44/sntp4416.htm

    Local $tNTP = DllStructCreate('byte Header[4];byte RootDelay[4];byte RootDispersion[4];byte ReferenceIdentifier[4];byte ReferenceTimestamp[8];byte OriginateTimestamp[8];byte ReceiveTimestamp[8];byte TransmitTimestamp[8];byte KeyIdentifier[4];byte MessageDigest[16]')
    Local $tPacket = DllStructCreate('byte Packet[68]', DllStructGetPtr($tNTP))
    Local $bPacket = 0, $tFT, $tQW, $aSocket, $aResult

;~  0x1B000000 = 00011011 00000000 00000000 00000000b (LI = 00b VN = 011b Mode = 011b Stratum = 00000000b Poll = 00000000b Precision = 00000000b)
    $tNTP.Header = Binary('0x1B000000')
    UDPStartup()
    If @Error Then
        Return SetError(1, 0, 0)
    EndIf
    $aSocket = UDPOpen(TCPNameToIP($sServer), 123)
    If @Error Then
        ; Nothing
    Else
        UDPSend($aSocket, $tPacket.Packet)
        If @Error Then
            ; Nothing
        Else
            While 1
                $bPacket = UDPRecv($aSocket, 68, 1)
                If (@Error) Or ($bPacket) Then
                    ExitLoop
                EndIf
                Sleep(100)
            WEnd
        EndIf
    EndIf
    UDPCloseSocket($aSocket)
    UDPShutdown()
    If Not $bPacket Then
        Return SetError(2, 0, 0)
    EndIf
    $tFT = DllStructCreate($tagFILETIME)
    If $fLocal Then
        $tQW = DllStructCreate('uint64 Timestamp')
    Else
        $tQW = DllStructCreate('uint64 Timestamp', DllStructGetPtr($tFT))
    EndIf
    $tPacket.Packet = $bPacket
ConsoleWrite($bPacket & @CRLF)
    $tQW.Timestamp = Dec(StringMid(DllStructGetData($tNTP, 'TransmitTimestamp'), 3, 8), 2) * 10000000 + 94354848000000000
ConsoleWrite(Dec(StringMid(DllStructGetData($tNTP, 'TransmitTimestamp'), 3, 8), 2) & @CRLF)
    If $fLocal Then
        $aResult = DllCall('kernel32.dll', 'bool', 'FileTimeToLocalFileTime', 'struct*', $tQW, "struct*", $tFT)
        If (@Error) Or (Not $aResult[0]) Then
            Return SetError(3, 0, 0)
        EndIf
    EndIf
    Return $tFT
EndFunc   ;==>_NTP_FT

$tFT = _NTP_FT('pool.ntp.org')

ConsoleWrite(_Date_Time_FileTimeToStr($tFT) & @CRLF)

0x1C0100ED000000000000001450505300D8C63C4D731DB4060000000000000000D8C63C52CDD5AE56D8C63C52CDD827A800000000
3636870226
04/01/2015 12:43:46

mLipok · April 1, 2015

I added @error to consolewrite

$tFT = _NTP_FT('pool.ntp.org')
ConsoleWrite('@error = ' & @error & @CR)
ConsoleWrite(_Date_Time_FileTimeToStr($tFT) & @CRLF)

0x1C0303EC0000024800003447C3BBF537D8C63D14477201FB0000000000000000D8C63D4E2F3B6889D8C63D4E2F43A16800000000

1

@error = 0

01/01/1900 02:00:01

Yashied · April 1, 2015

The problem with Dec() or StringMid(). You need to retrieve 0xD8C63D4E as UINT.

0x1C0303EC0000024800003447C3BBF537D8C63D14477201FB0000000000000000D8C63D4E2F3B6889D8C63D4E2F43A16800000000

Edited April 1, 2015 by Yashied

mLipok · April 1, 2015

Au3.3.13.20

0x1C0203E9000005D60000085E82951115D8C63FB8841140910000000000000000D8C63FF0F79A7594D8C63FF0F79D618B00000000

3636871152

@error = 0

04/01/2015 11:59:12

and sometime I get:

@error = 2

and empty string

But as I see this is connection problem.

I think it is time to jump in Au3.3.12.0 instead 3.3.10.2

Thanks.

mLipok

Yashied · April 1, 2015

#Include <Date.au3>
#Include <StructureConstants.au3>
#Include <WinAPIMisc.au3>

Func _NTP_FT($sServer, $fLocal = True)

;~  http://book.itep.ru/4/44/sntp4416.htm

    Local $tNTP = DllStructCreate('byte Header[4];byte RootDelay[4];byte RootDispersion[4];byte ReferenceIdentifier[4];byte ReferenceTimestamp[8];byte OriginateTimestamp[8];byte ReceiveTimestamp[8];byte TransmitTimestamp[8];byte KeyIdentifier[4];byte MessageDigest[16]')
    Local $tPacket = DllStructCreate('byte Packet[68]', DllStructGetPtr($tNTP))
    Local $bPacket = 0, $tFT, $tQW, $aSocket, $aResult

;~  0x1B000000 = 00011011 00000000 00000000 00000000b (LI = 00b VN = 011b Mode = 011b Stratum = 00000000b Poll = 00000000b Precision = 00000000b)
    $tNTP.Header = Binary('0x1B000000')
    UDPStartup()
    If @Error Then
        Return SetError(1, 0, 0)
    EndIf
    $aSocket = UDPOpen(TCPNameToIP($sServer), 123)
    If @Error Then
        ; Nothing
    Else
        UDPSend($aSocket, $tPacket.Packet)
        If @Error Then
            ; Nothing
        Else
            While 1
                $bPacket = UDPRecv($aSocket, 68, 1)
                If (@Error) Or ($bPacket) Then
                    ExitLoop
                EndIf
                Sleep(100)
            WEnd
        EndIf
    EndIf
    UDPCloseSocket($aSocket)
    UDPShutdown()
    If Not $bPacket Then
        Return SetError(2, 0, 0)
    EndIf
    $tFT = DllStructCreate($tagFILETIME)
    If $fLocal Then
        $tQW = DllStructCreate('uint64 Timestamp')
    Else
        $tQW = DllStructCreate('uint64 Timestamp', DllStructGetPtr($tFT))
    EndIf
    $tPacket.Packet = $bPacket
    $tQW.Timestamp = _WinAPI_SwapDWord(DllStructGetData(DllStructCreate('uint', DllStructGetPtr($tNTP, 'TransmitTimestamp')), 1)) * 10000000 + 94354848000000000
    If $fLocal Then
        $aResult = DllCall('kernel32.dll', 'bool', 'FileTimeToLocalFileTime', 'struct*', $tQW, "struct*", $tFT)
        If (@Error) Or (Not $aResult[0]) Then
            Return SetError(3, 0, 0)
        EndIf
    EndIf
    Return $tFT
EndFunc   ;==>_NTP_FT

$tFT = _NTP_FT('pool.ntp.org')

ConsoleWrite(_Date_Time_FileTimeToStr($tFT) & @CRLF)

mLipok · April 1, 2015

Fixed

thanks.

mLipok

mLipok · February 2, 2016

My latest modifications:

#include <Date.au3>
#include <StructureConstants.au3>
#include <WinAPIMisc.au3>

; #FUNCTION# ====================================================================================================================
; Name ..........: _NTP_FT
; Description ...: Get Time from NTP Server
; Syntax ........: _NTP_FT($sServer[, $fLocal = True])
; Parameters ....: $sServer             - a string value.
;                  $fLocal              - [optional] a floating point value. Default is True.
; Return values .: NTP Time
; Author ........: Yashied
; Modified ......:
; Remarks .......:
; Related .......: http://book.itep.ru/4/44/sntp4416.htm
; Link ..........: https://www.autoitscript.com/forum/topic/169356-how-to-get-the-current-date-from-the-internet/
; Example .......: No
; ===============================================================================================================================
Func _NTP_FT($sServer, $fLocal = True)

    Local $tNTP = DllStructCreate('byte Header[4];byte RootDelay[4];byte RootDispersion[4];byte ReferenceIdentifier[4];byte ReferenceTimestamp[8];byte OriginateTimestamp[8];byte ReceiveTimestamp[8];byte TransmitTimestamp[8];byte KeyIdentifier[4];byte MessageDigest[16]')
    Local $tPacket = DllStructCreate('byte Packet[68]', DllStructGetPtr($tNTP))
    Local $bPacket = 0, $tFT, $tQW, $aSocket, $aResult

;~  0x1B000000 = 00011011 00000000 00000000 00000000b (LI = 00b VN = 011b Mode = 011b Stratum = 00000000b Poll = 00000000b Precision = 00000000b)
    $tNTP.Header = Binary('0x1B000000')
    UDPStartup()
    If @error Then
        Return SetError(1, 0, 0)
    EndIf
    $aSocket = UDPOpen(TCPNameToIP($sServer), 123)
    If @error Then
        ; Nothing
    Else
        UDPSend($aSocket, $tPacket.Packet)
        If @error Then
            ; Nothing
        Else
            While 1
                $bPacket = UDPRecv($aSocket, 68, 1)
                If (@error) Or ($bPacket) Then
                    ExitLoop
                EndIf
                Sleep(100)
            WEnd
        EndIf
    EndIf
    UDPCloseSocket($aSocket)
    UDPShutdown()
    If Not $bPacket Then
        Return SetError(2, 0, 0)
    EndIf

    $tFT = DllStructCreate($tagFILETIME)
    If $fLocal Then
        $tQW = DllStructCreate('uint64 Timestamp')
    Else
        $tQW = DllStructCreate('uint64 Timestamp', DllStructGetPtr($tFT))
    EndIf
    $tPacket.Packet = $bPacket
    $tQW.Timestamp = _WinAPI_SwapDWord(DllStructGetData(DllStructCreate('uint', DllStructGetPtr($tNTP, 'TransmitTimestamp')), 1)) * 10000000 + 94354848000000000
    If $fLocal Then
        $aResult = DllCall('kernel32.dll', 'bool', 'FileTimeToLocalFileTime', 'struct*', $tQW, "struct*", $tFT)
        If (@error) Or (Not $aResult[0]) Then
            Return SetError(3, 0, 0)
        EndIf
    EndIf
    Return SetError(0, 0, $tFT)
EndFunc    ;==>_NTP_FT

; #FUNCTION# ====================================================================================================================
; Name ..........: _NTP_GetTime_PL
; Description ...:
; Syntax ........: _NTP_GetTime_PL([$sNTP_Server = 'pool.ntp.org'])
; Parameters ....: $sNTP_Server         - [optional] a string value. Default is 'pool.ntp.org'.
; Return values .: NTP Time
; Author ........: Yashied
; Modified ......: mLipok (PL Version)
; Remarks .......:
; Related .......:
; Link ..........: https://www.autoitscript.com/forum/topic/169356-how-to-get-the-current-date-from-the-internet/
; Example .......: No
; ===============================================================================================================================
Func _NTP_GetTime_PL($sNTP_Server = 'pool.ntp.org')
    Local $tFT = _NTP_FT($sNTP_Server)
    If @error Then
        Return SetError(1, @error, '')
    Else
        Local $sTime = _Date_Time_FileTimeToStr($tFT, 1)
        Return SetError(0, 0, $sTime)
    EndIf
EndFunc    ;==>_NTP_GetTime_PL

; #FUNCTION# ====================================================================================================================
; Name ..........: _NTP_GetTime_PLServers
; Description ...: Function for pickup PL current time, alternately from different servers
; Syntax ........: _NTP_GetTime_PLServers()
; Parameters ....: Time
; Return values .: None
; Author ........: mLipok
; Modified ......:
; Remarks .......: https://pl.wikipedia.org/wiki/Serwer_czasu
; Related .......:
; Link ..........: https://www.autoitscript.com/forum/topic/169356-how-to-get-the-current-date-from-the-internet/?page=2
; Example .......: No
; ===============================================================================================================================
Func _NTP_GetTime_PLServers()
    Local $sNTP_Time, $sNTP_Server = ''
    Local Static $sNTP_Server_Last = ''
    
    Local $aNTP_Servers = _
            [ _
            '0.pl.pool.ntp.org', _  ; http://www.pool.ntp.org/zone/pl
            '1.pl.pool.ntp.org', _  ; http://www.pool.ntp.org/zone/pl
            '2.pl.pool.ntp.org', _  ; http://www.pool.ntp.org/zone/pl
            '3.pl.pool.ntp.org', _  ; http://www.pool.ntp.org/zone/pl
            'tempus1.gum.gov.pl', _ ; https://www.gum.gov.pl/pl/zegar/
            'tempus2.gum.gov.pl', _ ; https://www.gum.gov.pl/pl/zegar/
            'ntp1.tp.pl', _  ; (źródło: atomowy zegar cezowy 5071A TP S.A.)
            'ntp2.tp.pl', _  ; (źródło: atomowy zegar cezowy 5071A TP S.A.)
            'ntp.icm.edu.pl', _  ; http://icm.edu.pl/web/guest
            'ntp.certum.pl', _  ; certum.pl
            'pool.ntp.org' _
            ]

    While 1
        $sNTP_Server = $aNTP_Servers[Random(0, UBound($aNTP_Servers) - 1, 1)]
        If $sNTP_Server = $sNTP_Server_Last Then
            ContinueLoop
        Else
            $sNTP_Server_Last = $sNTP_Server
        EndIf

        $sNTP_Time = _NTP_GetTime_PL($sNTP_Server)
        If Not @error Then ExitLoop
        Sleep(10)
    WEnd

    Return $sNTP_Time

EndFunc   ;==>_NTP_GetTime_PL

UEZ · February 2, 2016

That _NTP_FT function seems not to work behind a proxy.

I use this function to get the date which should be accurate.

#include <Array.au3>
Global $iError = 0, $oErrorChk = ObjEvent("AutoIt.Error", "ObjErrChk")

$aResult = GetDateFromINet()
If @error Then
    ConsoleWrite("Error connecting to internet!" & @CRLF)
Else
    _ArrayDisplay($aResult)
EndIf

Func GetDateFromINet($bProxy = False, $sProxy = "", $sURL = "http://www.google.com/")
    Local $oHTTP = ObjCreate("winhttp.winhttprequest.5.1")
    If $iError Then Return SetError(1, 0, 0)
    If $bProxy Then $oHttp.SetProxy(2, $sProxy)
    $oHTTP.Open("GET", $sURL, False)
    $oHTTP.Send()
    If $iError Then Return SetError(2, 0, 0)
    Local $sDate = $oHTTP.GetResponseHeader("Date")
    Local $sYear = StringRegExpReplace($sDate, ".+,\s*\d+\s*\w+\s*(20\d+)\s*.*", "$1")
    Local $iMonth, $aMonth[13] = [12, "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dez"]
    $iMonth = _ArraySearch($aMonth, StringRegExpReplace($sDate, ".+,\s*\d+\s*(\w+)\s*20\d+\s*.*", "$1"))
    Local $iDay, $aDay[8] = [7, "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
    $iDay = StringRegExpReplace($sDate, ".+,\s*(\d+)\s*\w+\s*20\d+\s*.*", "$1")
    $oHTTP = Null
    Local $aDate[3] = [$sYear, StringFormat("%02i", $iMonth), StringFormat("%02i", $iDay)]
    Return $aDate
EndFunc

Func ObjErrChk()
    $iError += 1
    ConsoleWrite($oErrorChk.scriptline & @CRLF)
    ConsoleWrite($oErrorChk.windescription & @CRLF)
    ConsoleWrite($oErrorChk.number & " / " & Hex($oErrorChk.number) & @CRLF)
EndFunc

Edited February 2, 2016 by UEZ

mLipok · October 4, 2021

I have a function that gets the time from the internet, i.e. it uses NTP servers.
Sometimes, however, this function can be called several thousand times in a single data processing process that takes, say, an hour.

I wonder if it will be enough if I get the time using NTP, and then for the next specified time interval I will use TimerDiff () and then again after this interval, I will repeat the query of the NTP server.

And now I wondering about TimerDiff() usage because of:

https://www.autoitscript.com/autoit3/docs/functions/TimerDiff.htm

Quote

Remarks

Some processors are known to cause the function to return incorrect result.

Do these processor imperfections matter if I am going to refresh my time every 5 minutes by downloading it from the NTP server?

Here is my modified _NTP_GetTime_PLServers() function:

; #FUNCTION# ====================================================================================================================
; Name ..........: _NTP_GetTime_PLServers
; Description ...: Function for pickup PL current time, alternately from different servers
; Syntax ........: _NTP_GetTime_PLServers()
; Parameters ....: none
; Return values .: NTP Time
; Author ........: mLipok
; Modified ......:
; Remarks .......: https://pl.wikipedia.org/wiki/Serwer_czasu
; Related .......:
; Link ..........: https://www.autoitscript.com/forum/topic/169356-how-to-get-the-current-date-from-the-internet/?page=2
; Example .......: No
; ===============================================================================================================================
Func _NTP_GetTime_PLServers()

    Local Const $aNTP_Servers = _
            [ _
            'time.windows.com', _ ; standardowy serwer czasu WINDOWS
            'ntp1.tp.pl', _ ; (źródło: atomowy zegar cezowy 5071A TP S.A.)
            'ntp2.tp.pl', _ ; (źródło: atomowy zegar cezowy 5071A TP S.A.)
            'ntp.icm.edu.pl', _ ; http://icm.edu.pl/web/guest
            'ntp.certum.pl', _ ; certum.pl
            'pool.ntp.org', _
            'time.coi.pw.edu.pl', _ ; https://pl.wikipedia.org/wiki/Serwer_czasu
            'ntp.nask.pl', _ ; https://pl.wikipedia.org/wiki/Serwer_czasu
            'ntp.task.gda.pl', _ ; https://pl.wikipedia.org/wiki/Serwer_czasu
            'news-archive.icm.edu.pl', _ ; https://pl.wikipedia.org/wiki/Serwer_czasu
            '0.pl.pool.ntp.org', _ ; http://www.pool.ntp.org/zone/pl
            '1.pl.pool.ntp.org', _ ; http://www.pool.ntp.org/zone/pl
            '2.pl.pool.ntp.org', _ ; http://www.pool.ntp.org/zone/pl
            '3.pl.pool.ntp.org', _ ; http://www.pool.ntp.org/zone/pl
            'ntp.media-com.com.pl', _ ; Bieruń > W.T.
            'tempus1.gum.gov.pl', _ ; https://www.gum.gov.pl/pl/zegar/
            'tempus2.gum.gov.pl' _ ; https://www.gum.gov.pl/pl/zegar/
            ]

    Local Static $sNTP_Time_Static
    #Region - _NTP_GetTime_PLServers() - checking interval
    Local Const $iTIMER_INTERVAL_SECONDS = 30 ;
    Local Static $hTimer = TimerInit()
    Local $iSecondsPastAway = Round(TimerDiff($hTimer) / 1000)
    If Not @Compiled Then ConsoleWrite("+ " & @ScriptLineNumber & ' :: ' & $iSecondsPastAway & ' / ' & $iTIMER_INTERVAL_SECONDS & ' >>> ' & _DateAdd('s', $iSecondsPastAway, $sNTP_Time_Static) & @CRLF)

    If $sNTP_Time_Static And $iSecondsPastAway <= $iTIMER_INTERVAL_SECONDS Then
        Return _DateAdd('s', $iSecondsPastAway, $sNTP_Time_Static)
    EndIf
    #EndRegion - _NTP_GetTime_PLServers() - checking interval

    #Region - _NTP_GetTime_PLServers() - checking internet time
    Local Const $i_NTP_Server_Count = UBound($aNTP_Servers)
    Local Static $i_NTP_Server_IDX = 0
    If $i_NTP_Server_IDX = $i_NTP_Server_Count Then $i_NTP_Server_IDX = 0

    While 1
        $sNTP_Time_Static = _NTP_GetTime_PL($aNTP_Servers[$i_NTP_Server_IDX])
        If Not @error Then ExitLoop
        $i_NTP_Server_IDX += 1
        If $i_NTP_Server_IDX = $i_NTP_Server_Count Then $i_NTP_Server_IDX = 0
    WEnd
    #EndRegion - _NTP_GetTime_PLServers() - checking internet time

    $hTimer = TimerInit()
    Return $sNTP_Time_Static
EndFunc   ;==>_NTP_GetTime_PLServers

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