It seems that he spends a working week at each of his companies, starting his day at 7 a.m., with a schedule that is divided into 5-minute time slots, dedicating 80% of his time to engineering and design work.
Mondays and Fridays he spends at SpaceX in Los Angeles, Tuesdays, Wednesdays and Thursdays he works at Tesla, therefore he dedicates about 40 and 42 hours respectively to each company, but he also dedicates part of his time to the non-profit organization of artificial intelligence OpenAI.
During the weekend he also usually spends time working, especially on Saturdays at SpaceX, and he also spends time with his children, but always on the lookout for email, he himself explains that he is able to dedicate time to them and also continue working.
Multitasking is another essential part of his time management, since he often works through his phone while attending work meetings. Email is his great ally, but always with an address that does not have his name on it to avoid possible spam.
Meals are also relatively important to him, since he does not eat breakfast, eats lunch in 5 minutes during a meeting, and it seems that the meal in which he ingests the most calories is during business dinners.
A very curious organizational model is that of the tycoon Elon Musk, who in the middle of this working day divided into 5-minute segments, also finds time to go to the gym and to read!