In the past, people like me would provoke exasperation, even anger. "I don't get it! She's always late." But recently I've heard a term that explains this behavior, a dignified description.
Time optimism is when you underestimate how long a task will take and overestimate how much time time you have to complete it. It's a term I first heard from my youngest daughter, herself a time optimist, a skill she no doubt picked up from me.
I like looking at lateness in this half-full way. It's not laziness, quite the opposite. But it is habit I'd like to break. So even though I want to explore this concept more right now, I won't. I need to leave here in 20 minutes... and I will.