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1.1 ! misho 1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> ! 2: ! 3: <html> ! 4: ! 5: <head> ! 6: <meta name="GENERATOR" content="Adobe PageMill 3.0 per Windows"> ! 7: <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> ! 8: <title>PTB Modem Time Service</title> ! 9: <link href="scripts/style.css" type="text/css" rel="stylesheet"> ! 10: </head> ! 11: ! 12: <body> ! 13: <h3>European Automated Computer Time Services</h3> ! 14: <hr> ! 15: <p>Several European countries use the following message data format:</p> ! 16: <p><font size="-1" face="Courier New">Data format<br> ! 17: 0000000000111111111122222222223333333333444444444455555555556666666666777777777 7<br> ! 18: 0123456789012345678901234567890123456789012345678901234567890123456789012345678 9<br> ! 19: 1995-01-23 20:58:51 MEZ 10402303260219950123195849740+40000500 *<br> ! 20: A B C D EF G H IJ K L M N O P Q R S T U V W XY Z<CR><LF><br> ! 21: A year<br> ! 22: B month<br> ! 23: C day<br> ! 24: D hour<br> ! 25: E : normally<br> ! 26: A for DST to ST switch first hour<br> ! 27: B for DST to ST switch second hour if not marked in H<br> ! 28: F minute<br> ! 29: G second<br> ! 30: H timezone<br> ! 31: I day of week<br> ! 32: J week of year<br> ! 33: K day of year<br> ! 34: L month for next ST/DST changes<br> ! 35: M day<br> ! 36: N hour<br> ! 37: O UTC year<br> ! 38: P UTC month<br> ! 39: Q UTC day<br> ! 40: R UTC hour<br> ! 41: S UTC minute<br> ! 42: T modified julian day (MJD)<br> ! 43: U DUT1<br> ! 44: V direction and month if leap second<br> ! 45: W signal delay (assumed/measured)<br> ! 46: X sequence number for additional text line in Y<br> ! 47: Y additional text<br> ! 48: Z on time marker (* - assumed delay / # measured delay)<br> ! 49: <CR>!<LF> ! is second change !<br> ! 50: </font></p> ! 51: <p>This format is an ITU-R Recommendation (ITU-R TF583.4) and is now available from the primary timing centres of the following countries: Austria, Belgium, Germany, Italy, The Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey and United Kingdom. Some examples are:</p> ! 52: <ul> ! 53: <li>In Germany by Physikalisch-Technische Bundesanstalt (PTB)'s timecode service. Phone number: +49 5 31 51 20 38. ! 54: <p>For more detail, see <a href="http://www.ptb.de/english/org/4/43/433/disse.html">http://www.ptb.de/english/org/4/43/433/disse.htm</a></p> ! 55: <li>In the UK by National Physical Laboratory (NPL)'s TRUETIME service. Phone number: 0891 516 333 ! 56: <p>For more detail, see <a href="http://www.npl.co.uk/npl/ctm/truetime.html">http://www.npl.co.uk/npl/ctm/truetime.html</a></p> ! 57: <li>In Italy by Istituto Elettrotecnico Nazionale "Galileo Ferrais" (IEN)'s CTD service. Phone number: 166 11 46 15 ! 58: <p>For more detail, see <a href="http://www.ien.it/tf/time/Pagina42.html">http://www.ien.it/tf/time/Pagina42.html</a></p> ! 59: <li>In Switzerland by Swiss Federal Office of Metrology's timecode service. Phone number: 031 323 32 25 ! 60: <p>For more detail, see <a href="http://www.metas.ch/en/labors/official-time/modem/index.html">http://www.ofmet.admin.ch/de/labors/4/Zeitvert.html </a></p> ! 61: <li>In Sweden by SP Swedish National Testing and Research Institute 's timecode service. Phone number: +46 33 415783. ! 62: <p>For more detail, see <a href="http://www.sp.se/metrology/timefreq/eng/tandf.htm">http://www.sp.se/metrology/timefreq/eng/tandf.htm</a></p> ! 63: </ul> ! 64: <dl></dl> ! 65: <h4>Additional Information</h4> ! 66: <p><a href="../refclock.html">Reference Clock Drivers</a></p> ! 67: <hr> ! 68: <script type="text/javascript" language="javascript" src="scripts/footer.txt"></script> ! 69: </body> ! 70: ! 71: </html>