Exercising around 7:45-8:00 AM, facing a window with sunlight, is a preferred method for circadian rhythm alignment.

“And I will use both exercise, I mean, I'm neither a strong morning type or a strong evening type. And my preference to exercise is probably sometime in the middle of the day, probably somewhere around 1pm sorry, not 1am. But I'm usually working out probably around the sort of seven, sort of 45 8am time, that's usually when I'll start my workout. And there I will start with cardio spin bike facing a window. And luckily, for the most part here in California, there's usually sunlight coming through. But it doesn't matter to me because just as you said, even when it's a cloudy day that Lux coming through of light, the intensity is splendid.”