Chronically late people have read every time management article ever published. They've bought planners. They've set alarms. They've tried the "leave ten minutes early" trick, which just means they're ten minutes late to the pre-departure panic. None of it works because lateness is not a knowledge problem. You know how to tell time. You know when you need to leave. You just... don't.
Late people tend to be optimists about time. They genuinely believe they can shower, dress, eat breakfast, find their keys, and drive across town in twenty-two minutes. They've never done this. It has never taken twenty-two minutes. But they believe, with the conviction of a true faith, that this time will be different. Time optimism is the most persistent form of magical thinking.
You're about to leave on time. You're at the door. Keys in hand. And then: "Let me just send this one email." The one email takes seven minutes. Now you're late, but you're at the computer, so you might as well check that other thing. Now you're very late. The sunk cost of lateness kicks in: "I'm already late, so five more minutes won't matter." Twenty minutes later, you leave. You are now operating on a timeline that only makes sense if you believe traffic lights are suggestions.
Set all your clocks seven minutes fast. This works for about three days until your brain adjusts and starts automatically subtracting seven minutes, making the clocks correct again but with extra math.
Tell yourself the event starts 30 minutes earlier than it does. You will lie to yourself and then remember the lie, making it useless. You cannot successfully deceive yourself. You're too smart and also too dumb for this trick, simultaneously.
Just accept it. You're going to be late. Build it into your identity. Warn people in advance. Show up with coffee for everyone. Being reliably late is at least consistent, and consistency is a form of integrity if you squint.