My boyfriend is ALWAYS late to meet me or go anywhere. However it's not just me, he's late for everyone and everything including his job.

What helped me and him as well, (because I am a verrrrrry punctual person), was examining his behavior and talking to him in depth about it. Turns out his lateness has been a big issue all his life and a skill that he has worked on countless times and has failed 100% of the time. It's been a real struggle for him and I do see him try and subsequently feel awful when he fails.

I helped him with feeling less bad about his failure because i can clearly see him trying. I explained to him that it's apparent that his concept of time is askew, ie he has zero concept of it and there is no reason to feel bad about something you honestly can't help, so just try to stay on the earlier part of late.

I tested my theory one day when he said, I'm going to watch 20 minutes of tv. 2 hours later he gets up and says he's done and ready to go thinking it's only been 20 minutes. I was like dude...look at the clock, you've been watching TV for 2 hours. He was dumbfounded, he legit thought it had only been that short time. So it's an issue with him and his perception of time in general.

There is nothing i can do except to encourage him and lead by example, but if him and i are going somewhere 10/10 times we are late.