A specific question, answered specifically.

ADHD time blindness — what it is and the only thing that helps

Time blindness is the consistent finding that ADHD adults underestimate how long things take and how much time has passed. It's not a metaphor — there's a specific lab paradigm where ADHD subjects produce time-interval estimates that are systematically off (PMID 12455825).

What actually works

External time, not internal time. If you can SEE time pass, your brain treats it as real. The two cheapest external-time hacks:

- A 60-minute Time Timer. Watching the red disc shrink is qualitatively different from watching numbers tick. About $35-40. - A wall clock with hands you can see across the room. Not a digital clock; the second hand moving is the thing.

The other actually-works move is calibration. Track 5-10 estimates against actuals — "I thought this would take 30 minutes; it took 95." After 5-10 of these, you find your distortion factor (often 2.5-3.5x for ADHD adults). Multiply every future estimate by your factor. The Time-Blindness Check tool does this in 90 seconds.

What doesn't work

Pomodoro timers on your phone. The phone is also where every distraction lives. The phone-timer approach fails because you don't see time pass — you just get a buzz when the time's already gone.

"Just plan better." If your time perception is off by 3x, no amount of planning fixes it. You need a multiplier, not a planner.

Smart watches with vibration alerts. Helps a little for hard deadlines. Doesn't help with the underlying perception problem.

The Deskrune version

SelfHealer Basics includes a 12-minute reset block specifically because 12 minutes is the unit ADHD brains can actually feel. After 12 minutes, you stop. The boundary is the point.