# Timeboxing, explained

URL: https://gocutline.com/glossary/timeboxing/

Timeboxing is giving a task a fixed budget of time in advance and stopping when the time is up, whether or not the task is perfect. It turns open-ended work into a decision about how much the work is worth.

## What it means
A timebox is a limit, not just a slot. "Write the proposal from 9 to 10" is a time block; "the proposal gets one hour, then it is sent" is a timebox. The idea is used in agile software teams, where a sprint or a meeting has a fixed length that does not move.

## How to do it in a calendar
- Decide the budget before you start: 30, 60 or 90 minutes.
- Put it in the calendar as a block with the budget as its length.
- When the block ends, ship what you have, or plan a second, smaller box.
- Tick it off only if you stopped on time.

## An example
A weekly report gets a 45-minute box on Friday at 15:00. At 15:45 it is sent as it is. Over a few weeks the report gets better at fitting the box, instead of the box stretching to fit the report.

## Common mistakes
- **Moving the end.** A timebox that grows is just a block that ran over.
- **Boxing tasks that need flow.** Deep creative work often needs a longer block, not a strict box.

## Questions

**Is timeboxing the same as time blocking?**
They overlap. Time blocking decides when a task happens; timeboxing also decides how long it is allowed to take. Most good weekly plans use both.

**How long should a timebox be?**
Long enough for a useful version of the task. For writing and admin, 30 to 60 minutes is common; for design or coding, 90 minutes or more.

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Cutline: Cutline is a weekly calendar and planner that turns time blocks into XP, levels and streaks. You plan your week in blocks, tick each one off when it is done, and see your progress on a social feed (the Floor) and a weekly leaderboard (the Arena). Planning and budgeting are free; paid plans add a badge, posting, messaging, shared calendars and lower selling fees, from $9 a month. Pro is free to try for 7 days.
Facts: https://gocutline.com/facts/ · Updated 2026-10-24