Study Timer
Run focused study sessions and breaks with a distraction-free fullscreen timer.
Stages
Total: 55 min
Options
Leave a field blank to disable that warning.
25:00
Review your stages and press Start.
Focus
Stage 1 of 3
Next: Break
For the best chance of hearing the alert, keep this tab open and active, keep the device awake, and ensure sound is allowed. Backgrounding the tab may delay or prevent the alert.
Keyboard shortcuts
- Space — Start, pause or resume
- R — Restart from the full duration
- F — Enter or exit fullscreen
- M — Mute or unmute the alert
How this timer works
Opens with a Focus, Break, Focus template (25/5/25 minutes) that advances automatically from one stage to the next, so a study session keeps moving without needing to click anything between stages.
Edit any stage's duration, add more Focus/Break stages for a longer session, or switch to a single timer for one plain block of study time.
Warning thresholds (5 and 1 minute by default) give quiet notice before a stage ends, and fullscreen mode strips the display down to the clock and current stage for low-distraction studying.
Frequently asked questions
Can I create focus and break stages?
Yes — the default template already alternates Focus and Break stages, and you can edit their durations or add more of either directly in the stage editor.
Will it move to the break automatically?
Yes. Study sessions default to automatic stage changes, so the timer advances from Focus to Break (and back) on its own as each stage's time runs out.
Is fullscreen mode distracting?
No — it's intentionally restrained: just the clock, the current stage and its remaining time, with nothing else competing for attention.
Does switching tabs, minimizing the browser, or the device sleeping affect this timer?
Yes, and it depends on which of those three things happens — they're not the same. If the tab merely goes to the background or is minimized while staying open, on-screen updates pause (the display doesn't repaint while hidden), but the countdown keeps advancing against a monotonic timestamp, not a repeating tick — when you return, the remaining time normally recalculates correctly and the display catches straight up. The audible alert doesn't get the same free pass: the browser may suspend or throttle it enough that it plays late, only once you're back, or not at all. Device sleep or a locked screen is a different, less predictable case: neither that catch-up nor the alert firing at all is guaranteed there, since what actually happens to a paused browser tab across a real system sleep depends on the browser and operating system, not this page. Closing or reloading the tab or browser is different again, not just less reliable — nothing about this timer is saved, so the countdown itself is cancelled, not paused: there's no state left to catch up and no alert that can fire. For the best chance of hearing the alert, keep this tab open and active, keep the device awake, and ensure sound is allowed. Backgrounding the tab may delay or prevent the alert.