Most workplaces still run on ‘early bird time,’ but research shows that nearly half of us do our best work later in the day. Here’s how night owls can talk about their biological rhythm with their boss in a way that boosts trust. For generations, we’ve been taught that early equals disciplined and late equals lazy. But that’s not biology—it’s a moral story disguised as science. As an expert in applied chronobiology, I’ve spent more than 20 years studying how biological rhythms shape work and wellbeing. It turns out that about 30% of people are early chronotypes (morning types), 30% are intermediates, and 40% are late chronotypes (evening types). Yet most workplaces still run on early-riser time—rewarding visibility over value, and hours over outcomes.