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Keywords: greenwich mean time GMT universal coordinated time UTC
:GetGmTime :RequestTime ;Tell the System that we will need the Internet Library AddExtender("wwwsk34I.dll") ;How many seconds do we wait before asking again? WaitForTime=15 ;See bottom of this file for a list of Time Servers TimeServer="tock.usno.navy.mil" TimePort=37 ;Request for Central Standard Time and a Synchronized base time. ;Get the Ip Address for this machine by ;opening and connecting a socket to a known Server who support "daytime". talksocket=sOpen() ;This line of Code can take upto 1 minute to complete if the server does not respond? ret=sConnect(talksocket,"%TimeServer%","%TimePort%") ;Even if the last line times out there is no error? err=wxGetLastErr() LoopCnt=1 Status=@FALSE While LoopCnt If (sOk2Recv(talksocket,1)==@FALSE) sClose(talksocket) GoTo RequestTime EndIf binbuf = BinaryAlloc(1000) BinaryEODSet(binbuf,1000) binaddr=IntControl(42,binbuf,0,0,0) Status=sRecvBinary(talksocket, binaddr, 4) If (Status==@FALSE) sClose(talksocket) GoTo RequestTime EndIf ;Number of Seconds since 1900 Jan 01 00:00:00 ;If return is B6F39734 then byte4=B6 byte3=F3 byte2=97 byte1=34 byte4=BinaryPeek( binbuf, 0 ) byte3=BinaryPeek( binbuf, 1 ) byte2=BinaryPeek( binbuf, 2 ) byte1=BinaryPeek( binbuf, 3 ) ;Number of Seconds since 1900 Jan 01 00:00:00 ;For example return of B6F39734 Word2=B6F3 Word1=9734 Word1=byte1+(256*byte2) Word2=byte3+(256*byte4) ;Add in Word1 Seconds GmTime=TimeAdd("1900:01:01:00:00:00","0000:00:00:00:00:%Word1%") ;Add in Word2 Seconds by chunks because it is ;too big for for a double word value(>0x7FFF FFFF or 2147483647). While Word2>0 If Word2>30000 GmTime=TimeAdd("%GmTime%","0000:00:00:00:00:1966080000") Word2=Word2-30000 Else Remainder=Word2*65536 GmTime=TimeAdd("%GmTime%","0000:00:00:00:00:%Remainder%") Word2=Word2-Word2 EndIf EndWhile ;All done with this Socket sClose(talksocket) ReturnList Compiled by Argun Tekant, Locutus Codeware
Public NTP Secondary (stratum 2) Time Servers
;Time Server Name Location Authored by Argun Tekant, Locutus Codeware ;ashe.cs.tcd.ie Trinity College, Dublin, Ireland ;augean.eleceng.adelaide.edu.au University of Adelaide, South Australia ;bernina.ethz.ch Swiss Fed. Inst. of Technology, CH 8092 Zurich, Switzerland ;black-ice.cc.vt.edu Virginia Tech Computing Center, Blacksburg, VA, USA ;chime1.surfnet.nl SURFnet bv, Utrecht, The Netherlands ;clepsydra.dec.com DEC Western Research Laboratory, Palo Alto, CA ;clock.psu.edu Penn State University, University Park, PA ;clock.tricity.wsu.edu Washington State University Tri-Cities, Richland, Wa ;delphi.cs.ucla.edu UCLA Computer Science Department, Los Angeles, CA ;esavax.esa.lanl.gov Los Alamos National Laboratory - Los Alamos, NM ;fartein.ifi.uio.no University of Oslo, Norway ;fuzz.psc.edu PSC Supercomputer Center, Pittsburgh, PA ;gazette.bcm.tmc.edu Baylor College of Medicine, Houston, Tx ;heechee.esa.lanl.gov Los Alamos National Laboratory, Los Alamos, NM ;lib1.tcd.ie Trinity College, Dublin, Ireland ;libra.rice.edu Rice University, Houston, TX ;louie.udel.edu University of Delaware, Newark, DE ;nic.near.net Cambridge, MA ;noc.near.net Cambridge, MA ;ntp.css.gov Center for Seismic Studies, Arlington, VA ;ntp.univ-lyon1.fr CISM, Lyon, France ;ntp0.strath.ac.uk Strathclyde University, Glasgow, Scotland. ;ntp0.cornell.edu Cornell University, Ithaca, NY ;ntp.adelaide.edu.au University of Adelaide, South Australia ;ntp-0.cso.uiuc.edu University of Illinois, Champaign, IL ;ntp-1.cso.uiuc.edu University of Illinois, Champaign, IL ;ntp-2.cso.uiuc.edu University of Illinois, Champaign, IL ;salmon.maths.tcd.ie Trinity College, Dublin, Ireland ;sundial.columbia.edu Morningside Campus, Columbia University, New York, NY ;tick.cs.unlv.edu UNLV Computer Science Department, Las Vegas, NV ;timeserver.cs.umb.edu University of Massachusetts, Boston, MA ;tmc.edu Baylor College of Medicine, Houston, Tx ;tock.cs.unlv.edu UNLV Computer Science Department, Las Vegas, NV ;vtserf.cc.vt.edu Virginia Tech Computing Center, Blacksburg, VA, USA ;wuarchive.wustl.edu Washington University, St. Louis, Missouri, USA ;yoyo.aarnet.edu.au The University of Adelaide, Adelaide, South AUSTRALIA ;Public NTP Primary (stratum 1) Time Servers ;Time Server Name Location ;apple.com Apple Computer, Cupertino, CA ;bitsy.mit.edu MIT Information Systems, Cambridge, MA ;clock.isc.org Internet Software Consortium, Palo Alto, CA ;clock.llnl.gov Lawrence Livermore National Laboratory, Livermore, CA ;clock.nc.fukuoka-u.ac.jp Fukuoka university, Fukuoka, Japan ;clock.tl.fukuoka-u.ac.jp Fukuoka university, Fukuoka, Japan ;lerc-dns.lerc.nasa.gov NASA Lewis Research Center, Cleveland, OH ;ncar.ucar.edu NCAR Supercomputer Center, Boulder, CO ;norad.arc.nasa.gov NASA Ames Research Center, Moffett Field, CA ;ntp.syd.dms.csiro.au National Measurements Laboratory, Sydney Australia. ;ntp0.nl.net NLnet, Amsterdam, The Netherlands ;ntps1-0.uni-erlangen.de University Erlangen-Nuernberg, D-91058 Erlangen, FRG ;ntps1-0.cs.tu-berlin.de Technische Universitaet Berlin, D-10587 Berlin, FRG ;ntps1-1.cs.tu-berlin.de Technische Universitaet Berlin, D-10587 Berlin, FRG ;ntps1-1.uni-erlangen.de University Erlangen-Nuernberg, D-91058 Erlangen, FRG ;ntps1-2.uni-erlangen.de University Erlangen-Nuernberg, D-91058 Erlangen, FRG ;otc1.psu.edu Penn State University, University Park, PA ;ntp.cc.utexas.edu University of Texas at Austin, Austin TX ;tick.usno.navy.mil U.S. Naval Observatory, Washington, DC ;Time1.Stupi.SE Stupi AB, Stockholm, SWEDEN ;timer.unik.no UNIK (University Department at Kjeller), Kjeller, Norway ;tock.usno.navy.mil U.S. Naval Observatory, Washington, DC ;wwvb.erg.sri.com SRI International, Menlo Park, CA ;wwvb.isi.edu USC Information Sciences Institute, Marina del Rey, CA
Article ID: W12608
Filename: How to Get GM Time from Time Servers.txt
File Created: 2001:03:01:15:02:58
Last Updated: 2001:03:01:15:02:58