They say the early bird catches the worm, and research suggests there might be some truth to the old adage.
Waking up with (or before) the sun allows executives like GM's Mary Barra and Pepsi's Indra Nooyi to get a head start on the day, knocking out tasks before the rest of the world has rolled out of bed.
Those "extra" hours also give them a chance to do some creative thinking, fit in a workout, and spend time with family.
Ahead, 24 early risers who may convince you never to hit snooze again.
Max Nisen and Aaron Taube contributed to earlier versions of this article.
24 successful people who wake up really (really) early
24 Successful People Who Wake Up Really (Really) Early
In a post for Business Insider, the Hint Water founder says she's up at 5:30 a.m. "on the dot," to look over her calendar, catch up on unread emails, and make sure nothing urgent has popped up over night.
Once that's done, she sips a double latte and takes a morning hike with her husband and dogs before making her first work-related call at 7:15.
The founder of Oxygen is awake by 6 a.m. and out of the house a half hour later. If you get up early enough she might even take you under her wing, she tells Yahoo Finance:
"Once or twice a week, I go for a walk in Central Park with a young person seeking my advice. This is my way of helping bring along the next generation. And if someone is up early in the morning, then they are serious about life. I can't take time at the office to do this, but doing it in the morning allows me to get exercise and stay connected with young people at the same time."
Although she doesn't run right to the office upon waking up at 4:30 a.m., Warrior spends an hour on email, reads the news, and works out. And she is still in the office by 8:30 at the latest, according to Yahoo Finance.
She was formerly the CTO of Motorola and has been one of the most highly acclaimed women in business during her career.