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Time blindness

Time blindness is losing track of how much time has passed and how much is left. An hour feels like ten minutes, or a task meant for twenty takes the whole afternoon. It is common in ADHD and it is not a matter of trying harder: time that cannot be seen is hard to judge.

By Amaan Nizam Published 19 October 2026. Updated 20 October 2026.

Amaan Nizam founded Sailyn and builds it alongside a mechatronics degree at THWS Würzburg-Schweinfurt and work at the university's Center for Robotics. An earlier venture, FluxTation, won first prize at the THWS Campus Startup Day. Who built it and why.

What it looks like

You look up and it is dark. You leave for an appointment at the moment you should have arrived. A short task swallows a morning, and a long one never starts because it seems to need more time than there is. None of this is carelessness. It is two things going wrong at once: judging how long something will take, and noticing time pass while you do it.

A review of studies with children and teenagers with ADHD found consistent differences in tasks that ask people to estimate, reproduce or compare lengths of time. And everybody tends to underestimate how long their own tasks will take, which researchers call the planning fallacy, so the two add up.

Zheng et al., 2022. Journal of Attention Disorders 26(2)

Buehler, Griffin & Ross, 1994. Journal of Personality and Social Psychology 67(3)

Make time something you can see

The advice that holds up is to stop relying on the feeling of time and put it outside your head: a clock you can see, a bar that shrinks, a warning before the next thing starts. Time drawn at its real size is easier to judge than time imagined.

Four things to try

  1. Write down how long you expect a task to take, then note how long it took. After a few, you have your own correction.
  2. Use a timer you can see, not only one that rings.
  3. Set a warning ten minutes before anything fixed, not at the moment it starts.
  4. Plan the time between things, such as getting ready and travelling, as real time in the day.

How Sailyn handles time

Sailyn draws your day at its real size, so an hour of work takes up an hour of space. During a session a bar shrinks as the time is used and says how long until the next fixed thing, with warnings ten and five minutes before. It also compares what you planned with how long your work really took, and plans your next tasks from that.

Sailyn is a planner and a focus timer. It is not a medical device, it treats nothing, and nothing on these pages is advice about a condition.

Know what you need to do, but can't get started? Sailyn gives you one next step, a plan that adapts, and no penalty for difficult days.

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