SIMILE Timeplot graphing hours minutes seconds
Next is with the index.html that loads the plot data. Look for the line
timeplot1.loadText(dataURL, " ", eventSource);
What I did not immediately recognize was that the " " bit is actually a field separator. So for comma separated values that line should be:
timeplot1.loadText(dataURL, ",", eventSource);
Once done everything worked as expected. SIMILE Timeplot and Timeline are great tools. Hope this saves you some research time.
http://www.simile-widgets.org/timeplot/