Definition of "cal"

“I set an hour on my cal every day for a home workout. Then I’d be on calls for three hours, then I’d make a homemade breakfast, take a walk at lunchtime, work on something non-screen-related in the evening, cook dinner and go on a run,” she said.

2020 April 1, Taylor Lorenz, “Stop Trying to Be Productive”, in The New York Times‎