3D surface plot with daily hours in the x-axis and days in y-axis

Hi, I'm new to 3D plots and I want to make a surface plot. The data to be plotted will consist of some sensor values including a datetime parameter. It should take whatever data I have and plot the hourly values in the x-axis, the days in the y-axis and the z values will be a single sensor parameter. I want the x-axis to always start from 00:00 and end at 12:00 and the y-axis to start from a Monday and end on a Sunday (and then repeat depending on how many days the imported data consists of). My problem is I dont understand how I can tell matlab to use these definitions for the axis and overwrite whatever data I have on top of these. I understand I have to manipulate the time data using datenum and I think I might need to create timeseries objects for that but I can't find any good documentation on how to do what I want. Anybody has any ideas or any example codes that could help? Anything is appreciated.