In short
A focus timer commits you to one task for a set stretch, removing the repeated decision about whether to keep going. This page opens at 45 minutes. Most people sustain genuine concentration for 45 to 90 minutes on demanding work, less when tired or when the task is vaguely defined.
- Default block
- 45 minutes
- Usual sustainable range
- 45 to 90 minutes
- Versus Pomodoro
- One block of any length, rather than a fixed 25/5 cycle
Why the timer helps more than willpower
Attention does not usually fail all at once. It leaks — a glance at the clock, a quick look at a message, a small decision about whether to keep going. A running countdown removes that last one. The decision was made when you pressed start, and it is not up for review until the alarm.
Setting up a focus block
- Name the task, not the topic. 'Draft the intro' beats 'work on report'.
- Close everything else, including the tab you keep 'just checking'.
- Put the phone in another room. Face down on the desk is not the same thing.
- Have a landing note — one line about where you got to, written before the break, so restarting is cheap.
How long can you actually focus?
Longer than a 25 minute Pomodoro if the work is deep, shorter than the three hour blocks people imagine they manage. Forty-five to ninety minutes is the range most people can sustain with real attention, and the ceiling drops fast when you are tired or the task is vague. Start at 45 and adjust for a week before deciding what your number is.
Questions about the focus timer
Is a focus timer different from a Pomodoro timer?
Only in structure. A Pomodoro timer runs a fixed cycle of work and breaks; a focus timer is one block of whatever length suits the task, and you decide what happens after.
What if I finish before the alarm?
Stop. Finishing early is not a reason to fill the block with busywork — use the remaining minutes to write the landing note and take the break early.
Does it need an internet connection?
Only to load the page the first time. After that the site is cached on your device, so it opens and runs offline, and losing the connection mid-countdown changes nothing.
Can I use it at work, in a gym or in a classroom?
Yes, without restriction. Project it, put it on a shared screen, or link to it — there is no licence to buy and no commercial-use limit.
Related timers
- Pomodoro timer25 minutes of work, 5 minutes off, on repeat.
- 45 minute timerCounts down 45 minutes and rings.
- 30 minute timerCounts down 30 minutes and rings.
- Productivity timerTimeboxing for admin, email and deep work.
- Study timerTime a revision block and keep the phone face down.
- 60 minute timerCounts down 60 minutes and rings.