What Time Do Successful People Wake Up in the Morning?

Marissa Mayer, 4:00 to 6:00am-12:00am

Four years after taking the helm at Yahoo, Marissa Mayer is overseeing a sale of the embattled tech pioneer's core business amid falling traffic and ad revenues. In late 2015 the company backed away from plans to spin off its most valuable asset, a 15% stake in Chinese e-commerce giant Alibaba, currently valued at $30 billion.