I once worked with a bank where a server we depended on was only available from 0800 to 1500, then 1530 to 1700. I think that's the only time i've ever had to build around a computer which took a tea break.
They also will not take online orders during the Sabbath (i.e., Friday evening until Saturday evening). It's peculiar that they enforce it for online checkout. It's a quality website nonetheless.