Since I don't have a cell phone yet and the Windows calendar is good for only seeing dates, I've spent some time online this AM after recalling that my DIL mentioned a Google calendar a couple of months ago.
I think it will do for now! You have to have a free Google account to use it, and I did. You can enter your information by days and hours in the days, by four days, by the week, by the month, etc. I even sent a link to my desktop for it so it is right where I can get to it easily!
BTW, I am hoping someone takes pity on me this upcoming holiday season and thinks I need a cell phone of some kind that I can take in the car.