In his book “Creativity,” Mihaly Csikszentmihalyi advises readers who want to find flow to take charge of their own schedules.

It is also possible the schedule you are following is not the best for your purposes. The best time for using your creative energies could be early in the morning or late at night. Can you carve out some time for yourself when your energy is most efficient? Can you fit sleep to your purpose, instead of the other way around?

The times when most people eat may not be the best for you. You might get hungry earlier than lunchtime and lose concentration because you feel jittery; or to perform at the top of your potential it may be best to skip lunch and have a midafternoon snack instead. There are probably best times to shop, to visit, to work, to relax for each one of us; the more we do things at the most suitable times, the more creative energy we can free up.

Most of us have never had the chance to discover which parts of the day or night are most suited to our rhythms. To regain this knowledge we have to pay attention to how well the schedule we follow fits our inner states—when we feel best eating, sleeping, working, and so forth. Once we have identified the ideal patterns, we can begin the task of changing things around so that we can do things when it is most suitable…Time is more flexible than most of us think.

Another advantage to flex scheduling: It lets you get away from the nonstop communication flow that occurs during “mainstream” hours. It’s a lot easier to get things done when you’re not constantly being pinged by others.