How to track your time without a timer

A stopwatch is the obvious way to measure time and the worst way to measure a working day. If you have tried a timer and it did not stick, the failure is structural rather than personal, and there are three other approaches that do not depend on remembering.

Why timers fail, specifically

A timer asks you to remember twice: once to start it and once to stop it. Miss the first and the work is invisible. Miss the second and it runs through lunch, through the afternoon, and occasionally overnight.

Worse, it fails silently in one direction and loudly in the other. A timer you forgot to start leaves no trace at all, so the record looks complete when it is missing a third of the day. A timer you forgot to stop leaves fifteen hours that you notice and delete — and then you have deleted real work along with the sleep.

None of this is an argument against timers for people they suit. If you do one thing at a time, for long stretches, with a clear start, a timer is the most accurate method there is. Most people do not work like that.

Four ways to do it without one

1. Answer at an interval instead of starting and stopping

Something asks you, every so often, what you have been doing. You answer about the interval that has just finished, so there is nothing to start and nothing to forget. Miss one and you have lost one interval, not the day.

Where it fails: it needs you to be at the machine, and it needs the interval to be short enough that you can remember the block but long enough not to irritate. Fifteen minutes suits most people; five suits anyone billing in units.

2. Write the block down when you finish it

No software required. When you stop doing a thing, write the thing and the two times. The discipline is finishing the entry, not starting it.

Where it fails: the moment you stop a piece of work is usually the moment something else has already started, which is exactly why this collapses by Wednesday. It works best with a paper notebook in your line of sight rather than an app behind a window.

3. Use the calendar as the record, not the plan

Block the day in advance, then at the end of it go back and correct the blocks to what actually happened. Move them, stretch them, delete them. You end up with a timeline that is the truth rather than the intention, in a tool you already have open.

Where it fails: almost nobody does the correcting, and an uncorrected calendar is a record of your optimism. It is also poor at short pieces — a calendar with eleven-minute entries becomes unusable as a calendar.

4. Let software watch instead

Automatic trackers record which application, document and web page you had in front of you and build the record without being asked. It is the only approach that captures everything, and for some people that settles it.

Where it fails: it has to be allowed to see what you are doing. On a Mac, naming the document you had open requires Screen Recording permission — there is a fuller explanation of that here. If your file names contain client names, that is the trade being asked of you. It also cannot tell you what you were doing, only what was on screen: an hour in a spreadsheet might be the budget or might be the VAT return.

Which one to pick

• If you bill clients, pick whichever method you will still be using in three weeks. Precision you abandon is worth less than roughness you keep.
• If your work is confidential, the automatic option is the one to think hardest about, and your clients would probably agree.
• If you switch tasks constantly, interval answering suits you and the calendar does not.
• If you work in long uninterrupted stretches, honestly, use a timer. It is the most accurate thing available and your problem is not the one this page describes.

The part that matters more than the method

Whichever you pick, keep the gaps. Every approach above will miss something, and the instinct is to fill the hole with something plausible so the day adds up.

An hour you cannot account for is the single most useful thing in a time record. It is the only entry that tells you something you did not already know.