4:30 a.m. wake-up
Uses itWakes at 4:30 a.m. and works out before dawn
Business Insider's day-in-the-life profile says Willink's day starts at 4:30 a.m. with a pre-dawn workout.
“It begins at 4:30 in the morning.”Jocko Willink
Source: A day in the life of a retired Navy SEAL commander who wakes up at 4:30 a.m. (article)