Thank you for your help! I did try to make myself an admin, but I found out that I already am. Since I still could not change the date/time, I made a new admin account to see if that one would work. That account didn't work either, so I'm just assuming that it's a flaw in my computer. I also tried using the "ghost" admin account, since I have Windows XP, but I couldn't change it on that one either. I don't know what else to do, so I'm just going to give up for now, I suppose. Oh well, thank you anyways!