The average American’s workweek has gotten 10% longer during the pandemic, according to a new Microsoft study published in Nature Human Behaviour.

Why it matters: These longer hours are a key part of the pandemic-induced crisis of burnout at U.S. firms — and workers are quitting in droves.

Between the lines: Microsoft calculated the length of the workday based on the time between Teams users’ first email, message or work call and their last. So the longer workweeks don’t necessarily mean we’re working more, the study says.