The idea behind early and/or late walks is to not interrupt developer flow in peak cognitive hours. My current manager is one of few in my career who recognizes

The idea behind early and/or late walks is to not interrupt developer flow in peak cognitive hours. My current manager is one of few in my career who recognizes the reduction in productivity that comes from interrupting the flow. Software engineers have largely been nocturnal, favoring later arrival times at work, in my experience. In my team's case, all the developers are late arrivals so our manager simply works with that tendency.