45 Minute Timer
45:00
Timer ready or paused
A 45 minute timer leaves a substantial work interval and room for a break within an hour. Use it for a prepared chapter, revision pass or problem set. Forty-five minutes is a scheduling choice, not a measured universal attention limit.
What 45 minutes is good for
- Deep work on a problem you already understand
- Study sessions with a defined syllabus
- Writing once the outline exists
- Anything where the first ten minutes are setup
Where it falls down
If fatigue or interruptions reduce the quality of your work, shorten the interval. A lecture schedule does not establish the right length for your own task.
Using it well
Name one task before you press begin — not a subject but a task, the kind of action whose result you can inspect. If the phone is a distraction, try placing it out of reach. Stop at a useful stopping point and leave a restart note. A timer does not require you to abandon work at an unsafe or unsuitable moment.
If you set the timer and then still do not start, the problem is not necessarily the length. Check whether the next action is clear and the materials are ready. A timer cannot verify whether you began. One support to try is body doubling.
Common questions
- Why do so many institutions use forty-five minutes?
- It is long enough to cover something substantial and short enough to schedule around, with time left for a changeover. That is a scheduling result rather than a cognitive one, but it has survived a long time in a lot of places.
- What break follows a forty-five minute block?
- Ten to fifteen minutes, away from screens, ideally standing or outside. The longer the block, the less optional this becomes.
- Does this timer have a completion alarm?
- Select Completion bell before you begin. It is off by default and separate from ambience. Keep the page open and allow audio. Device sleep may delay the sound; this is not a reliable alarm for an essential deadline.
- What happens if I switch tabs, refresh or close the page?
- While the page remains open, the countdown uses a wall-clock deadline and catches up after tab throttling. Refreshing or closing resets the session. Pausing preserves the remaining time until you resume or reset.
Other lengths
- Online timers
Start a focus timer online now. Choose a work block, pause or reset the countdown, and use optional ambience. Free, with no account required.
- ADHD Timer
Start an ADHD timer online with 5, 10, 20 or 25 minutes. Follow the visual countdown, pause when needed and choose optional ambience. No account required.
- Study Break Ideas: Choose a Pause You Can Finish
Choose study break ideas for a library, home or small space. Use eight practical options, a return note and a free downloadable break-planning card.
- 5 Minute Timer
Start a 5 minute timer for one small task or a short break. Pause, resume or reset the visual countdown in your browser, with no sign-up.
- 10 Minute Timer
Use a 10 minute timer for a short task, practice or a break. Start the browser countdown, pause or reset it, and choose optional sound. No account needed.
- 15 Minute Timer
Start a 15 minute timer for paperwork, practice or a short work block. Pause and reset the countdown, with optional ambience and no account.