1181834Sroberto<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2181834Sroberto 3181834Sroberto<html> 4181834Sroberto 5181834Sroberto <head> 6181834Sroberto <meta name="GENERATOR" content="Adobe PageMill 3.0 per Windows"> 7181834Sroberto <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> 8181834Sroberto <title>PTB Modem Time Service</title> 9181834Sroberto <link href="scripts/style.css" type="text/css" rel="stylesheet"> 10181834Sroberto </head> 11181834Sroberto 12181834Sroberto <body> 13181834Sroberto <h3>European Automated Computer Time Services</h3> 14181834Sroberto <hr> 15181834Sroberto <p>Several European countries use the following message data format:</p> 16181834Sroberto <p><font size="-1" face="Courier New">Data format<br> 17181834Sroberto 0000000000111111111122222222223333333333444444444455555555556666666666777777777 7<br> 18181834Sroberto 0123456789012345678901234567890123456789012345678901234567890123456789012345678 9<br> 19181834Sroberto 1995-01-23 20:58:51 MEZ 10402303260219950123195849740+40000500 *<br> 20181834Sroberto 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> 21181834Sroberto A year<br> 22181834Sroberto B month<br> 23181834Sroberto C day<br> 24181834Sroberto D hour<br> 25181834Sroberto E : normally<br> 26181834Sroberto A for DST to ST switch first hour<br> 27181834Sroberto B for DST to ST switch second hour if not marked in H<br> 28181834Sroberto F minute<br> 29181834Sroberto G second<br> 30181834Sroberto H timezone<br> 31181834Sroberto I day of week<br> 32181834Sroberto J week of year<br> 33181834Sroberto K day of year<br> 34181834Sroberto L month for next ST/DST changes<br> 35181834Sroberto M day<br> 36181834Sroberto N hour<br> 37181834Sroberto O UTC year<br> 38181834Sroberto P UTC month<br> 39181834Sroberto Q UTC day<br> 40181834Sroberto R UTC hour<br> 41181834Sroberto S UTC minute<br> 42181834Sroberto T modified julian day (MJD)<br> 43181834Sroberto U DUT1<br> 44181834Sroberto V direction and month if leap second<br> 45181834Sroberto W signal delay (assumed/measured)<br> 46181834Sroberto X sequence number for additional text line in Y<br> 47181834Sroberto Y additional text<br> 48181834Sroberto Z on time marker (* - assumed delay / # measured delay)<br> 49181834Sroberto <CR>!<LF> ! is second change !<br> 50181834Sroberto </font></p> 51181834Sroberto <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> 52181834Sroberto <ul> 53181834Sroberto <li>In Germany by Physikalisch-Technische Bundesanstalt (PTB)'s timecode service. Phone number: +49 5 31 51 20 38. 54181834Sroberto <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> 55181834Sroberto <li>In the UK by National Physical Laboratory (NPL)'s TRUETIME service. Phone number: 0891 516 333 56181834Sroberto <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> 57181834Sroberto <li>In Italy by Istituto Elettrotecnico Nazionale "Galileo Ferrais" (IEN)'s CTD service. Phone number: 166 11 46 15 58181834Sroberto <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> 59181834Sroberto <li>In Switzerland by Swiss Federal Office of Metrology's timecode service. Phone number: 031 323 32 25 60181834Sroberto <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> 61181834Sroberto <li>In Sweden by SP Swedish National Testing and Research Institute 's timecode service. Phone number: +46 33 415783. 62181834Sroberto <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> 63181834Sroberto </ul> 64181834Sroberto <dl></dl> 65181834Sroberto <h4>Additional Information</h4> 66181834Sroberto <p><a href="../refclock.html">Reference Clock Drivers</a></p> 67181834Sroberto <hr> 68181834Sroberto <script type="text/javascript" language="javascript" src="scripts/footer.txt"></script> 69181834Sroberto </body> 70181834Sroberto 71181834Sroberto</html>