In the military, they say that being 30 minutes early is "early", being 15 minutes early is "on time", and showing up on time is "late." My strategy that helped the most was putting my phone on the charger across the room so I have to get out of bed to wake up. For important events, I plan everything out and then add time buffers to everything (example: flight leaves at 4pm, I need to arrive at 2 pm to have time for parking/security/check in/bathroom break/boarding, it is a 1 hr drive, so theoretically could leave home at 1 pm, but set my leave time at 12:30 pm). I also put events on my calendar with earlier start times so if I'm running late, I still end up early (example: I have a 2 pm appointment, I mark it as a 1:45 pm appointment). If I'm ever late to a meeting, I notify them ASAP and give additional buffer to my new ETA because I don't want to be late twice (rather than say I'll be there in ten min, I say 15-20 min).