It could be time blindness and executive dysfunction not connected to ADHD. There isn't really a mild version of ADHD, but some people get it worse than others. There are also subtypes, like hyperactive or inattentive, and each acts differently. You can always do an online screening to see if your symptoms are in the ballpark.
So true, I struggle with this a lot. I try to never plan anything around 11 am, because of this. At 9 am it feels like it's 10:30 which means I am almost too late so I get paralyzed
I had a conflict with work and needed to leave by 1PM to get home by 2, so I could be at the thing 10 minutes from my house at 2:30....
By the time I sat down at my desk, my brain wouldn't let go of the fact that I needed to leave soon, so I shouldn't get involved in anything that will take too long.
Also my brain: things that take too long means anything that will take more than 20 minutes.
..... It's 9AM. I have FOUR HOURS before I need to leave, but if a task will take a half hour, well, screw it, I gotta go soon 🤪 better put it off until tomorrow! 🤡