[reportlab-users] times in a plot lines chart

[Julio Cesar Rodriguez Cruz]

Hi all, I need to display a lines chart with a series of values vs
time, of my captured logs data i.e.

var1 = [(13:55:20 4/11/2011, 1.5), (13:58:10 4/11/2011, 2.3)...]
var2 = [(13:55:20 4/11/2011, 3.5), (13:58:10 4/11/2011, 3.3)...]
...

I check the code at http://www.reportlab.com/snippets/5/ it works ok,
but it display in the x's axe only the month and the year, I research
a bit but as I see NormalDate object is only for dates, allowing to
display until date details, and I need more deep details to display
also the hours, minutes and seconds in the chart

 ...I missed something and there is a way to handle this using the
GridLinePlot? ...maybe by scripting a pluggin? any ideas?

Thanks
Julio Cesar