LPT: Planning to be early often results in being on-time but less stressed, & more prepared

For example: You need to be somewhere at 12:30pm and it's a 20min drive. You plan to leave by 12:00pm to account for transit delays, parking and walking to your final destination. At 12:00pm you have a minute to go through a checklist of everything you need and might remember to grab an important thing you'd otherwise have forgotten.

A late bus, or a red-light won't stress you out as much knowing you still have a few minutes buffer.

Bonus Tip: If you end up arriving too early, you can usually wait out of sight until finally approaching your destination within a reasonable time.

Bonus Tip #2: It's always worth noting things that you should be late to (Dinner parties), Early to (Job Interviews, about 15min) and just about right on-time to (Meeting friends in a public place)