Research has proven that work efficiency in the morning is three times higher than in the evening. Any work that requires a clear mind to complete (such as writing), I do it in the early morning. If my body and mind are tired (in the evening), I go outside and do some hard work. Then, I will use the "overtime" time of the day (evening) to arrange what I need to do tomorrow morning, so that I don't need to do preparatory activities the next day and can start running on the track.
Generally speaking, the most challenging things are best done in the morning. There is another reason for this - after we have been tortured by various household chores and work all day, we usually have no time or energy to deal with anything big, important or practical.
But when to get more work done is definitely a personal matter. You have to manage it yourself; don't let me or anyone else (except maybe your boss) boss you around.
Maybe our clocks are the same, but there are no certain rules for when we need to work hardest - maybe when the hour hand points to the left, maybe to the right, maybe down, maybe in the middle somewhere. Even so, you still have to consider other people's schedules. Otherwise, your mission may suddenly become unavailable because you need partners, agents, or consultations with people who work traditional 9-to-5 hours.
We are all different, so you have to find a way to organize your time (one that works for you - not someone else) and follow it.
