Custom Calendars: If I can't find one, I'll make one.

Why is it hidden?
Never mind, it's nothing big.

Also I'm not sure if this helps or anything but Python has a calendar module.
http://ideone.com/FurAB

I'm still rusty, but all I see there is a method to print a month given the year and numeric month, along with it's default start day of the week being set. I'm blind if I can't figure out that page, but I don't see any way of inputting data from that.

I think Outlook should do what you described.

After you mentioned that, I realized that I don't have that on this computer. It's so old now I forgot if that was due to the OEM install of the OS or what, but I've used Mozilla Thunderbird all this time.

But does the current Outlook have any features added to the standard Windows Calendar? I've had a look at that; and unless I'm missing some advanced features, there doesn't seem to be any way to add attributes which you could later sort by or add up which was one of the key things I was looking for. However, the month view looks very similar to what is provided in Visual basic, so there might also be some hidden way to get at that day planner element within the Windows Calendar. Additionally, looking into the format, (.ics), I might be able to find some more information on how to use it.