Think about the last week of meetings on your calendar. How many of them were booked for a full hour, and how many actually needed one? If you are honest, a good share of that time was spent circling, restating, and filling space until the clock ran out. This is not a personal failing or a sign that your team is lazy. It is a pattern so common that it has a name, and once you see it you cannot stop seeing it. The idea is that work expands to fill the time you give it, and meetings are where this shows up most clearly of all.
The observation comes from a British writer named Cyril Northcote Parkinson, who put it in an essay for a magazine in 1955. He was writing partly as satire about government offices that seemed to grow busier without producing anything more. His line that work expands to fill the time available for its completion was meant as a joke with a sharp edge. The joke stuck because everyone recognized the truth in it. A report that could be written in a morning somehow takes the whole week when the deadline is Friday. A task with no deadline at all can drift for months without ever getting done.
Meetings are especially exposed to this because of how we schedule them. Calendar software offers default blocks of thirty or sixty minutes, so that is what people pick without thinking twice. Nobody sets a meeting for seventeen minutes even when seventeen minutes is all the agenda truly requires. Once the hour is on the calendar, the discussion quietly stretches to match it. People arrive, settle in, revisit points already made, and wander into side topics because there is time to fill. The container shapes the contents, and the container was chosen by a dropdown menu rather than by the actual work in front of everyone.
The cost of this is larger than one wasted afternoon. Every unnecessary half hour is multiplied by the number of people in the room and then repeated week after week. A standing hour-long meeting with six people that really needs twenty-five minutes is burning several hours of paid attention every single week. Worse, long meetings crowd out the focused, uninterrupted stretches where the real work actually happens. People leave a full day of meetings feeling busy and yet strangely behind, because they were present for everything and productive at almost nothing. The waste hides in plain sight because it looks and feels like work. That is what makes it so hard to cut, since nobody wants to be the person who questions a meeting everyone treats as normal. The habit survives precisely because it is comfortable and shared.
The first fix is to change the default. Try booking meetings for twenty-five or fifty minutes instead of thirty or sixty. That small buffer does two useful things at once. It forces a slightly tighter conversation, and it gives everyone a few minutes to breathe before the next call begins. Some teams go further and set a default of fifteen minutes, adding time only when the agenda clearly demands it. The point is to make the length a decision rather than a habit. When you have to justify the extra time out loud, you often discover that you did not really need it. The default is the enemy here, not the meeting itself.
The second fix is to give every meeting a written purpose and permission to end early. An agenda with a clear goal at the top tells everyone what finished looks like, so the group can stop the moment it gets there. Ending a meeting fifteen minutes early should be treated as a win, not an awkward silence. The same discipline works on solo tasks as well. Give yourself a firm, slightly uncomfortable deadline and the work tends to compress to fit inside it. Deadlines are not only about avoiding lateness. They are a tool for deciding how much of your life a single task is allowed to take.
Parkinson's Law is not a rule of physics, which is the good news buried inside it. It describes a habit, and habits can be changed once you name them plainly. The next time you are about to click sixty minutes out of reflex, pause and ask what the meeting actually needs. Protect your focused hours the way you would protect money, because they are just as easy to spend without noticing. Give your important work less room, not more, and watch how much of it still gets finished. Time behaves very differently the moment you stop handing it away by default. A team that reclaims even one hour a week per person gains back days of real work across a year. That time does not vanish into thin air. It goes straight back into the work that actually matters.
