Consider what is made possible if you went to bed forty-minutes later, woke up 1 hour earlier, or woke up earlier on the weekend.
The discussion of training your circadian rhythm is really misdirected. What we’re really talking about is distinguishing between behaviors that comply with and those that challenge your circadian rhythm. The hardwired nature of circadian rhythm means that you will do well to learn the typical cycle.
This is an important lesson. Corporations will often attempt to sell you on the fact that you can pay $140 total so that you don't have to pay $60. But, of course, that doesn't make financial sense.
Many people can't reduce by sacrifice, and it makes the goal of making more money their only option. The whole proposition of making more money has detrimental effects on other areas in their life.