If you haven’t signed on to Xbox Live within the past few hours, then you’ve yet to receive your message about the Xbox Live service being down on April 1st for a period of 3 hours starting around 2:00 PDT.
The message doesn’t include AM or PM, so we’re hoping for AM so that the majority of gamers won’t have an interrupted service. It would be a pretty decent April Fool’s joke if they had changed the time to something roughly around 24 hours, but we have a feeling they’re more than likely serious about this one.