Draw date on X axis and time on Y axis using ZedGraph and C#

In ZedGraph, how do I draw a time (like 00:00, 02:00, 04:00, etc.) on the Y axis and date (like 12-Apr-11, 13-Apr-11, 14-Apr-11, etc.) on the X axis? The bar settings has been set to BarType.Stack.

Sample code will be very helpful.