The day you planned was never possible

Here is a morning list of mine that looked entirely reasonable when I wrote it. Six things, none of them enormous, on a day with about six working hours in it.

That is six hours of work, and it assumes every estimate is right and nothing interrupts you. The day has about six hours in it, minus lunch, minus the thing that will come up, minus the twenty minutes after each call where you are not much use to anyone.

0 hrsleft over, before anything goes wrong

So the day was already impossible at nine in the morning, and I did not know that until six in the evening. Not by a lot. By an hour, maybe two, which is exactly the margin I never noticed while I was writing the list.

You did not run out of willpower at four. You ran out of hours, and the list never mentioned it.

Why lists hide this

A to-do list is a set of names. Six names take up six lines, and six lines look like a small amount of paper. Nothing about the shape of a list tells you that one of those lines is two hours and another is fifteen minutes, so the page looks equally achievable whether it holds forty minutes of work or eleven hours.

I used to state confidently that people with ADHD underestimate how long things take, because I had read it in a hundred places and it matched my whole life. So I went looking for the research behind it, and it is thinner and less settled than the internet makes it sound.

I am telling you that rather than quoting the half of it that suits me, because a post that only cites the convenient studies is worth nothing to you. What I can say is what happened to me: thirty minutes and two hours felt identical from the outside of a task I had not started, and the only thing that ever fixed it was writing the number down before I began instead of guessing at the end.

How to plan your day so it actually fits

Put a rough number of minutes against each thing before you commit to the day, add them up, and compare that to the hours you actually have. That is the whole technique, and I have not found a better one. It takes about a minute and it moves the disappointment from six in the evening to nine in the morning, when I can still do something about it.

The numbers do not need to be right. They need to exist. My estimates are still wrong, often by twenty minutes a task, and it does not matter: being wrong by twenty minutes still tells you that six items is a nine-hour day, and that was the thing I needed to know.

What you do with the answer is the actual decision: something comes off. Choosing which one at nine in the morning is a small choice. Finding out at six in the evening, when three things are unfinished and you have to work out what that says about you, is a much worse one.

Actto adds those minutes up as you plan, against the hours you said you had. It is arithmetic rather than intelligence, which is why it is free, and it is the one thing that changed the most days for me.