How focus timer works
A focus timer is a single countdown block — you decide how long to focus, start the clock, and a live countdown shows the remaining time. Unlike the Pomodoro timer, which structures your work into repeating focus and break cycles, this timer is for one uninterrupted block of however long you choose.
Enter the duration in hours, minutes and seconds. The tool converts that into a total number of seconds and, if you set a start time, also shows the estimated end clock time so you know roughly when the block finishes. Press Start to begin the live countdown, Pause to hold it, and Reset to return to the full duration.
Everything runs in your browser. No timer data is sent anywhere, and the countdown only keeps going while the page is open. If you refresh or close the tab the timer resets, so keep the tab open while you work or use the estimated end time as a reference.
Frequently asked questions
How is a focus timer different from a Pomodoro timer?
A focus timer runs a single countdown of whatever length you choose — 10 minutes, 90 minutes, anything. A Pomodoro timer structures work into repeating 25-minute focus blocks separated by short and long breaks. Use a focus timer for one flexible deep-work block, and the Pomodoro timer when you want a structured session of several blocks.
Does the timer keep running if I close the tab?
No. The countdown runs only while the page is open. If you refresh or close the tab the timer resets to the full duration, so keep the tab open while you work, or note the estimated end clock time as a reference.
Can I set a timer longer than an hour?
Yes. Enter the hours, minutes and seconds fields together — for example 1 hour 30 minutes for a 90-minute block. The total duration can be up to 24 hours.
Is there an API for the focus timer?
Yes. POST to /api/focus-timer with hours, minutes, seconds and an optional start time to receive the total seconds, a padded HH:MM:SS display string, and the estimated end time as JSON. No authentication is required and CORS is enabled.
