It depends entirely on your schedule. There are a lot of people who are at work/commuting from 8-6 every weekday. IF no one is home during those hours, your power usage drops to just maintenance power for fridges and the like. The hours from 6pm-10pm are a bit of a challenge, but with some minor load shifting (start the dishwasher and clothes dryer at 10pm before bed), you can get some savings on TOU.

A few years back SCE had a EV-TOU plan that was peak hours only from 10am-6pm, and it was very easy to save money on that plan.