150 Minute Timer

This free online 150 minute timer is perfect for longer activities like study sessions, deep work blocks, cooking meals, exercise routines, and more. You can start the timer with one click, and it will count down from 9000 seconds — with an alarm when time's up.

Whether you're using it for productivity, classroom exercises, or personal routines, this countdown timer works on any device and requires no download.

Frequently Asked Questions

Does the timer include an alarm?

You can choose to enable an alarm that sounds when the timer reaches zero. You can also change the sound of the alarm in settings.

What is a 150-minute timer used for?

A 150-minute countdown is often used for comprehensive activities like deep work sessions, movie watching, complete workouts, batch cooking, or learning new skills.