Your calendar is better at remembering your week than you are

Ask yourself what you did last Wednesday at 11:00.

Unless something dramatic happened, the answer may take a moment.

Open your calendar and the answer is often immediate.

That is useful.

Calendars are accidental work logs

They are not timesheets.

They were never meant to be.

But they contain structured evidence of one important kind of work: scheduled time.

Meetings already have a date, a start, an end and usually a title.

That is a surprisingly good starting point.

Meetings are easy to undercount

A 30-minute client meeting may be obvious.

Preparation before it and follow-up after it are less so.

The calendar gives you the central event. You still need judgement around the rest.

That is why calendar data is useful without being complete.

Scheduled duration is not always actual duration

A one-hour meeting may end after 45 minutes.

Or run for 90.

The calendar is a record of what was planned, not a perfect truth about what happened.

Again: evidence, not automatic billing.

Still better than memory

When you are reconstructing a week, a calendar entry saying:

`Acme status meeting · 10:00–10:45`

is far more useful than trying to remember whether the meeting happened on Tuesday or Thursday.

The closer your time system can get to that existing context, the less you need to recreate manually.

Do not turn every task into a calendar event

The lesson is not to force your whole workday into the calendar.

Let the calendar remember the things calendars are naturally good at.

Let tasks remember tasks.

Let timers measure the work that benefits from a timer.

A good time record can be assembled from several useful sources without making any one of them do everything.