Discovery Communications CEO David Zaslav tries to make the most of his time each day.
He discussed the topic in a wide-ranging interview with CNBC contributor Suzy Welch.
"First, I'm a morning person," says Zaslav, 57, who gets up at 4:45 a.m. "I have this time between a quarter to five in the morning and 7:00 a.m. when everyone's asleep."
He uses it to get a head start on the work day. "I lay out my clothes, and I'm out on the streets of New York," he tells Welch. "I'm either talking to Asia or Europe, or I'm listening to music."
He walks about four miles "to get some exercise," which he says helps him "burn off energy" and "stress."
Zaslav, who's been CEO of Discovery since 2007, also reads the papers in the morning. "[I]t gives me a sense of calm," he says. "It's a chance for me to kind of reflect on what's going on."