Originally Posted by JohnnyJames

Gotta tough it out.

Stay up a full 24 hours until you hit the time of the clock where you want to be your usual schedule.

I know of no other way and have encountered this myself a few times.

It is a bitch, but only lasts one day. Then you have to hit the sack at the same time from then on.

If you cannot do this, you may need a sleep aid. Do not try with booze or drugs, can really fuck you up or even kill you.

I find weekends best to try this, as you usually have fewer concerns about work and such.