Seems like you have a bit more time, according to our resident Nuclear Physicist, Ed Hartouni, over on Supertopo:
"hey Juan, if the LHC destroys the world on Wed, it will actually happen on Tue because they will collide beam early so that they know it will happen during their press conference...
If, in fact, we (I'm one of the eggheads) destroy the planet, I'll take you out for a beer.
Also, it will take more than a nanosecond... the fastest it could happen is the diameter of the earth, 41,851,445' divided by the speed of light... 1 ns/ft, that's more like 42 milliseconds, tops!
If it is the speed of sound it takes even longer, what's the speed of sound in the earth? You know that number I'm sure. "
"actually, I don't think you have to worry about tomorrow...
here's why: they will start to commission the LHC (Large Hadron Collider) by injecting beam into one of the rings... then circulate the beam in that ring. Then they will do it in the other ring... that will take 6 days.
Then they will take the beams to 450 GeV (which is less than Fermilab's Tevatron) and do a bunch of measurements... that will take 9 days
They'll then setup for collisions at 450 on 450, still less than Fermilab... another 13 days.
Finally, they will setup for collisions at 7 TeV... so maybe by the end of the month there will be collisions in the ring that have never occurred on earth before in a laboratory. These collisions happen all the time with cosmic rays hitting the earth, however...
You can check on progress at the LHC Commissioning home page
Lots of time to drink pints and choose your favorite towel...
...and work on the improbability drive...
Don't worry, be happy."