If you'd like to know whether I'm up or not and can't be bothered to check the webcam, have a look at the FMars Time Clock. I particularly like that the 24th hour has 99 minutes.
Oddly, my circadian rhythm seem to be naturally on Mars time. On a 24hr day, I always want to stay up just that little bit later, and sleep in that little bit later, than a normal schedule allows. The extra 39 minutes in a Martian sol allows me to do just that, without throwing the whole day off. Kinda neat.