I have been battling for the past 2 days with this. I import a .csv file into a datatable. The columb "Date" has the following data in each row "13/9/2 14:24:30" I need to plot data in zedgraph with these dates and time. each row in the datatable is 2 seconds apart and run over a period of normally 7 days. I dont have a clue on how to use this data and convert it to something that zgraph will understand and plot using datasourcepointlist.

Any help will do.

I myself did not know it untill recently, but you can do charting, plotting and graphing in C# and .NET. Here is an example.
A DateTime has a Tics property, which converts "13/9/2 14:24:30" to one number.