The best time to push is the middle of the day of any weekday, possibly when there's a lot of traffic. You'll immediately figure out if there are problems and s

The best time to push is the middle of the day of any weekday, possibly when there's a lot of traffic. You'll immediately figure out if there are problems and should already have the setup to revert or have enough tests to know that the basic functionality will be working. If you push at any other time you'll end up not having any power on finding out when stuff is wrong. Friday or weekend pushes are an absolute bad idea most of the time.