Plotting sequential data against sequential dates

Ok folks,

Grateful for some help!

I've data that I want to plot against sequential date times. So basically one plot with data up a certain date and then more data with dates.

i.e A1-A5(date) is data plotted against b1-b5(data)and then A5-A10(date) against B5-B10 (dates).

Hope this makes sense