If you upgrade to dasBlog 1.2, I would definitely recommend following the instructions to change the times of 1.1 entries. If you don't, in our time zone at least, the old blogs will show up on the wrong dates, and you won't even be able to edit them.

So, here's what I did -- copy the *dayentry* and *dayextra* files from the content folder into a temporary directory, drag-and-drop them into TextPad, and do an all-document search and replace from "-07:00" to "+00:00". Copy the files back into the content folder and "touch" the Web.config file in the blog directory.