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TimerHub

Study Timer

Free online study timer for focus sessions, homework, revision, and reading blocks.

Use a 25 minute study timer when you need a focused block without checking the clock. Take a short break when the alarm sounds, then start another round.

homework timerrevision timerfocus study timerstudy countdown timer
25:00
Alarm on

Space start/pause · R reset · +− adjust

Floating Picture-in-Picture needs a Chromium browser; this one doesn't support it.

Background sound

Off

Quick Timers

1m90s3m5m10m15m30m45m1h4h

More ways to run this timer

Run it with rain, waves or a focus pad →Same countdown, with an ambient bed that fades out at zero. No video, no ads.Need a visual countdown instead? →Sand, candle, rocket, traffic light and seven more — built for projectors and classrooms.

Proven Timer Pages

4 Hour Timer45 Minute Timer9 Minute Timer90 Second Timer11 Minute Timer12 Minute Timer
Turn this duration into a focused work cycle with Pomodoro →

Related Timers

15 Minute Timer20 Minute Timer25 Minute Timer30 Minute Timer1 Hour Timer

Embed this timer

Paste this into any page — a class blog, a lesson plan, a meeting agenda — and visitors get a working study timer with no script tag, no account and no tracking. Please keep the credit link.

About the Study Timer

Free study timer for focused homework, revision, reading, and exam prep. Start a 25 minute focus session with sound alerts and no sign-up.

TimerHub calculates remaining time from an absolute finish timestamp, so missed browser callbacks do not create drift. Read the timing accuracy methodology and reproducible tests.

Common Uses

  • Homework sessions
  • Exam revision
  • Reading blocks
  • Flashcard practice
  • Focused writing

How to Use the Study Timer

  • Click Start (or press Space) to begin your 25 minute countdown
  • Press Space again to pause and resume, or R to reset the timer
  • Use the +/- buttons to adjust by 1 minute while running
  • Toggle Repeat to loop the countdown automatically, and watch the finish time under the display
  • Use the Fullscreen control below the timer for a large full-screen countdown (Esc to exit)
  • Pick a background sound — rain, ocean, fireplace or brown noise — that fades out at zero
  • Choose or mute the alarm sound from the sound settings in the header
  • Add ?autostart=1 to the link to start the countdown on load
  • Enable notifications for alerts when your study timer finishes, even in a background tab

Frequently Asked Questions

Is 25 minutes a good study timer length?▾

Yes. Twenty-five minutes is long enough to make progress and short enough to stay focused. If you need more time, try 30, 45, or 60 minute sessions.

Should I take breaks between study timers?▾

A 5 minute break after a 25 minute study timer is a good default. For longer sessions, take a longer break every few rounds.

Can I use this for homework on mobile?▾

Yes. The study timer works in mobile browsers, so you can keep it open beside notes, books, or a laptop.