title: Gnuplot Date and Time on the x axis
body: <p>What I want to do is plot a graph where my x axis takes a date from the first column of data and then a time from my second column and uses both to create the x axis,</p>
  <p>I have a set of data from a date logger that I want to graph on gnuplot, as I get new data every day and it would be so easy to just add on each txt file as I get them</p>
  <p>The text files look like this (each span 24 hours)</p>
  <blockquote>
  <p>Date  Time    Value</p>
  <p>30/07/2014 00:59:38    0.075<br />
  30/07/2014 00:58:34    0.102<br />
  30/07/2014  00:57:31    0.058<br />
  30/07/2014  00:56:31    0.089<br />
  30/07/2014  00:55:28    0.119<br />
  30/07/2014  00:54:26    0.151<br />
  30/07/2014  00:53:22    0.17<br />
  30/07/2014  00:52:19    0.171<br />
  30/07/2014  00:51:17    0.221<br />
  30/07/2014  00:50:17    0<br />
  30/07/2014  00:49:13    0<br />
  30/07/2014  00:48:11    0<br />
  30/07/2014  00:47:09    0</p>
  </blockquote>
  <p>This solution <a href="https://stackoverflow.com/questions/19883155/mixing-date-and-time-on-gnuplot-xaxis">mixing date and time on gnuplot xaxis</a> would suit me perfectly, but its very complex and I have no idea what is going on, let alone apply it to multiple files</p>
  <p>Here's the code I tried, but I get an illegal day of the month error?</p>
  <pre><code>#!/gnuplot
  set timefmt '%d/%m/%Y %H:%M:%S'
  set xdata time
  set format x '%d/%m/%Y %H:%M:%S'
  
  
  
  #DATA FILES
  plot '30.07.2014 Soli.txt'  using 1:3 title '30/07/2014'  with points pt 5 lc rgb 'red',\
       '31.07.2014 Soli.txt'  using 1:3 title '31/07/2014'  with points pt 5 lc rgb 'blue'
  </code></pre>
  <p>All help appreciated! Thanks</p>