The best time of day to do everything, from exercising to interviewing for a job

We've all been there: You wake up psyched to take on the workday, and by the time you go to sleep you feel like you've been totally unproductive.

What happened?

Maybe it's not a question of what you did, but of when you did it.

As in, you drank coffee before you needed it and ended up crashing later, or you spent the whole morning answering emails so you had no energy left to work on the really important stuff in the afternoon.

To help make sure that never happens again, we checked out the scientific research on the best time of day to do pretty much everything. Read and start crafting the perfect schedule.

Yu Han/Business Insider