What is calendar hygiene?

The maintenance nobody books time for

Calendar hygiene is the set of small habits that keep a shared calendar readable by somebody who is not you. It is unglamorous, nobody is rewarded for it, and its absence is the reason a colleague opens your week and cannot tell whether Thursday afternoon is free.

The whole practice fits into four habits and one recurring cull.

Titles that survive being read by a stranger

A meeting title is read most often by people deciding whether to interrupt you. “Sync” tells them nothing, so they interrupt. “Pricing decision — needs Wren” tells them everything, so they do not.

A title that works has a subject and a stake. It does not need a project code, an emoji taxonomy or the attendees’ names — the invite already knows who is coming.

Guests who actually need to be there

The second habit is the shortest: before sending, remove one guest. Not as a gimmick — as a check. If removing one person makes the meeting impossible, the list was right. If it changes nothing, the list was habit.

Optional guests are a good feature used badly. Marking six people optional does not shrink a meeting; it just moves the decision onto six other people, who now each spend a minute making it.

A visible shape to the week

The third habit is about shape rather than content. A week that reads well has recognisable blocks: mornings that look like each other, an afternoon that is reliably open, one day that is obviously different.

Booking pages should defend the shape, not describe it. A note in your bio saying you prefer mornings is decoration; a rule that only offers mornings is hygiene.

Events that clean up after themselves

The fourth habit is a technical one, and it is where tooling helps most. Every event should carry enough context to be understood a month later without opening another tab: the agenda, the outcome, and the link that produced it.

A short audit is enough to find the events that will not survive that test:

// Events that a colleague could not interpret next month.
export function untidyEvents(events: Event[]): Event[] {
  return events.filter((event) => {
    const vagueTitle = event.title.trim().split(/\s+/).length < 3;
    const noAgenda = !event.description?.trim();
    const crowd = event.guests.length > 6 && !event.agendaOwner;
    return vagueTitle || noAgenda || crowd;
  });
}

Run it once and the list will be long. Run it weekly and it stays short, which is the entire idea.

The quarterly cull

Once a quarter, open the recurring events and delete the ones that have stopped earning their slot. Every recurring meeting was justified when it started; roughly a third are not justified ninety days later, and none of them will cancel themselves.

The cull is easier if it is scheduled, announced and blameless. “We delete recurring meetings every quarter and re-create the ones we miss” removes the awkwardness entirely, because nothing is being judged — it is just the calendar’s turn to be tidied.

Why any of this matters

None of these habits save a dramatic amount of time on their own. Together they change what a calendar is for: from a record of commitments you have already made, to a document a colleague can read and act on without asking you a single question.

That is the whole return. It is smaller than most productivity writing promises, and much more likely to still be true next year.