I've noticed that some DLC releases at midnight Monday, while some doesn't until Tuesday afternoon. Has Bethesda, or Microsoft said anything I missed?

Oh, and before anybody says anything, yes I am excited enough to stay up, and download it at midnight lol.

Depends who's midnight you mean.

For most dlc I've experienced, for me in the Eastern Time Zone in the US, they release between 3-5. Who's to say this one will be the same though?

Yeah, I've noticed with some of the more popular DLCs, sometimes they'll release at midnight, but it seems to be rare. Really hoping Dawnguard is one of these rare ones lol.

It will release when Xbox Live updates, and thats usually sometime after midnight. I have woken up and its been updated sometimes, and sometimes its not until later that evening, so it depends on MS