45 Minute TimerFree Online Countdown
Set a timer for 45 minutes with a loud alarm. Pause, add a minute, share the link.
Set time
Quick timers
Keep this tab open with volume on. Tap Test sound once to allow audio.
Online 45 minute timer
This page gives you a free online 45 minute timer. The time is already set to 45 minutes, so just tap Start Timer, keep the tab open and a loud alarm rings when 45 minutes are up.
45 minutes matches a typical class or a solid deep-study session.
Popular uses for a 45 minutes timer
Deep work
Protect one uninterrupted block for your hardest task.
Practice test
Simulate real exam timing at home.
Dinner in the oven
Do other things and let the timer remind you.
Cardio session
Run, cycle or swim for a set duration.
45 minutes in other units
How to use the 45 minute timer
- 1Check that the timer shows 45 minutes, or change hours, minutes and seconds.
- 2Tap Start Timer and allow notifications when your browser asks.
- 3Watch the ring count down. Pause, resume or tap +1 min whenever you need.
- 4When 45 minutes are over, a loud alarm rings. Tap Stop alarm or restart the same timer.
Other timers like 45 minutes
45 minute timer FAQ
How do I set a timer for 45 minutes?
The 45 minute timer is already selected on this page. Tap Start Timer, allow notifications if asked, and keep the tab open with your volume up. You will hear a loud alarm when 45 minutes have passed.
How many seconds, minutes and hours is 45 minutes?
45 minutes equals 2700 seconds, 45 minutes or 0.75 hours.
Will the 45 minute timer keep running if I close the tab?
No, the tab must stay open for the alarm to play. You can switch to other tabs or apps, and the timer keeps its end time even if you refresh the page.
Can I pause or add time to the 45 minute timer?
Yes. Use the Pause button to stop the countdown and Resume to continue. Tap +1 min to extend a running timer, or Reset to start over.
Does the 45 minutes timer work on iPhone and Android?
Yes. It works in Safari, Chrome, Edge and Firefox on iPhone, Android, Windows and macOS. It is free and needs no app or signup.