The leave-by alarm: how to stop being 10 minutes late

Here's the trick that fixed my chronic lateness: stop setting alarms for when things start, and start setting them for when you need to LEAVE. Sounds almost too simple, right? But think about how lateness actually happens. Your calendar says "dinner at 6:30," so you glance at the clock at 6:05 and think, "plenty of time." Then you're hunting for your shoes, stuck in traffic, circling for parking — and suddenly you're texting "so sorry, running 10 behind!!" The problem isn't your sense of time. It's that your calendar was measuring the wrong event. The leave-by alarm fixes the measurement. The night before (or morning of), figure out the drive, the parking, the walking-in time, and add a five-minute cushion. Set the alarm for THAT time and label it "LEAVE NOW." When it goes off, you don't think — you move. The thinking was done earlier, when you were calm. A few refinements I've learned: put the leave-by time in the calendar event title itself ("Dinner w/ Maya — leave 5:50") so your future self can't negotiate with it. Make the alarm a distinct, annoying sound — the one that means business. And if it's an important event, tell yourself the leave-by time is the deadline, not the suggestion. This isn't about becoming a ruthlessly punctual robot. It's about removing the one decision that always goes wrong. The leaving part is the hard part; the event is the easy part. Automate the hard part and the rest takes care of itself. Try it this week on one thing you're always late to. Ten minutes of setup, zero more "sorry I'm late" texts.