And by "best", I don't mean all stars (a la Fitzpatrick, Norvig, Pike or other Google celebs), but the engineer who actually followed the whole project/patch from dev environment to production.
or to put it simple: not at 1700 on friday.
The overwhelming vast majority of the world's population lives between approximately 120 west longitude and 120 east longitude. That's just 2/3 of Earth. If you take a globe and orient it so you are staring at the middle of the Pacific Ocean, you won't see very much land.
This means that even sites that are truly global should still have a strong 24 hour cyclic variation in their traffic.