I understand that you need to perform maintenance - I even like that you stay on your toes, but please. Please, please either use the 24 clock, or put am or pm. Not a big thing. Actually really, really simple, but I think you'll find it'll make a great deal of difference to those of us wondering what the hell you're talking about, when you inform us days in advance, that maintenance will be performed on a certain date, between 7-9. 7-9 what? AM? PM?