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TimerHub

30 Minute Timer

Free online 30 minute countdown timer with alarm

Set a 30 minute timer for a workout, lunch break, meeting, or meal prep. Start the 30 min countdown with sound alerts and notifications on any device.

30 min timertimer 30 minutesset a timer for 30 minuteshalf hour timer30 minute countdown timer
30:00
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

5 Minute Timer10 Minute Timer15 Minute Timer28 Minute Timer29 Minute Timer31 Minute Timer32 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 30 minute timer with no script tag, no account and no tracking. Please keep the credit link.

About the 30 Minute Timer

Set a 30 minute timer that shows its finish time before you commit, survives a throttled background tab, and alarms at zero. Optional ambient sound, fullscreen display, and push alerts if you close the tab.

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

  • Full workout
  • Lunch break
  • Meal prep
  • Deep work session
  • Meeting duration

How to Use the 30 Minute Timer

  • Click Start (or press Space) to begin your 30 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 30 minute timer finishes, even in a background tab

Frequently Asked Questions

How long is 30 minutes?▾

30 minutes is exactly 1,800 seconds, or 0.5 of an hour. Our free 30-minute timer counts down precisely and alerts you when time is up.

What can I do in 30 minutes?▾

A 30 minute timer is great for full workout, lunch break, meal prep. Set it and focus on your task — the alarm will let you know when time is up.

Does the timer work in the background?▾

Yes, our timer continues running even if you switch to another tab or minimize your browser. Enable notifications to get alerted when it finishes.

Does the alarm sound when the timer finishes?▾

Yes, an alarm plays automatically the moment the 30 minute countdown reaches zero, with an optional vibration on mobile. Enable notifications for an extra system alert, even from a background tab.

Can I make the timer fullscreen?▾

Yes, use the Fullscreen control below the timer to expand the countdown to your whole screen — great for classrooms, presentations, and workouts. Press Esc to exit fullscreen.

Can I use the 30 minute timer on my phone?▾

Yes, our 30 minute timer is fully responsive and works on all devices including iPhone and Android. Open this page in your mobile browser and tap Start.