Step 1: Find Your Peak Times
Each one of us has a different "peak time" or highest-energy time during the day. Some of us are morning people. Others have more energy around mid-afternoon. And some people feel their best at night.
Most people know instinctively when their "up" times are and when their "down" times are. And you probably don't have just one. Some people feel up in the morning, down in the afternoon, and up again in the early evening.
https://www.mindtools.com/pages/article/newHTE_79.htm