Alarm options
Space start / pause · R reset · F fullscreen
A 90 minute timer, ready to start
This timer is already set to 90 minutes. Press Start — or the Space bar — and it counts down, then plays an alarm when the time is up. No setting up, no sign-up, nothing to install.
Leave it in a tab while you work: the time left shows in the browser tab, so you can see it from any other tab. Or press Fullscreen to fill the screen with big numbers and a progress bar — handy in a classroom, a kitchen or a meeting room.
Features
- Ready at 90 minutes — or click another preset, or type any time
- Four alarm sounds — beep, bell, digital watch or a gentle chime — that keep ringing until you press Stop
- Ends at — see the clock time when the timer will finish, and add +1 min while it runs
- The time left in the browser tab, which blinks "Time's up!" at the end — plus an optional notification
- Fullscreen with big digits, a progress bar and six colour themes
- Keeps the screen on while it runs, so a phone or laptop does not go dark
- Pause and resume without losing the time left
- Keyboard shortcuts: Space start / pause, R reset, F fullscreen
What people use a 90 minute timer for
- A football (soccer) match: two halves of 45 minutes
- A 90-minute exam or practice test
- A deep-work block on one hard task
- A long nap — many people find about 90 minutes, one full sleep cycle, feels better than an hour
- A film, a hike or a parking time limit
90 minutes is 1 hour 30 minutes — the timer shows it as 01:30:00 and counts down second by second.
How to use it
- Press Start (or the Space bar) — the 90 minute countdown begins
- Press Pause to stop for a moment and Resume to go on
- Press Fullscreen to show the timer big on your screen
- When the alarm rings, press Stop, then Reset to start again
Frequently asked questions
Does the timer keep running in another tab?
Yes. You can switch tabs or minimize the window; the timer keeps counting and the alarm rings on time. Just do not close this tab.
Will the alarm ring if my computer goes to sleep?
No — a sleeping computer runs nothing. That is why the timer asks the browser to keep the screen on while it counts down.
Is a 90 minute timer the same as a 1.5 hour timer?
Yes. 90 minutes is one and a half hours (1:30:00). You can also type any hours and minutes into the boxes, or use the Timer.
Can I change the alarm sound?
Yes. Open Alarm options and pick a beep, a bell, a digital watch or a gentle chime — you hear it when you choose it. You can also let it ring just once, or keep ringing until you press Stop.
Is it free?
Yes. No sign-up and nothing to install, and it works offline once the page is open.
Related tools
- Timer & Stopwatch — set any time
- Visual Timer — a coloured disc that shrinks as time runs out
- Pomodoro Timer — work and break cycles
