Are you a night owl or a morning person?
Night owl (person)
A night owl, evening person or simply owl, is a person who tends to stay up until late at night, or the early hours of the morning. Night owls who are involuntarily unable to fall asleep for several hours after a normal time may have delayed sleep phase syndrome. 
The opposite of a night owl is an early bird – a lark as opposed to an owl – which is someone who tends to begin sleeping at a time that is considered early and also wakes early.
scheduling, it may be better to execute tasks in a flexible, unstructured schedule which has time slots for only necessary activities.
Piers Steel suggests that better time management is a key to overcoming procrastination, including being aware of and using one's "power hours" (being a "morning person" or "night owl"). A good approach is to creatively utilize one's internal circadian rhythms that are best suited for the most challenging and productive work. Steel states that it is essential to have realistic goals,