Free online timer
90 minute timer — 1.5 hour timer
Free, with no sign-up. Pick a scene, press Start, and a bell lets you know when the time is up.
What 90 minutes is good for
Ninety minutes is roughly one ultradian cycle, the rise and fall many people notice in their concentration through the day. One ninety-minute block of deep work and a proper break afterwards is a whole morning's output for a lot of people.
- One deep-work block
- A long exam paper
- A long writing or design session
A little less: the 60 minute timer.A little more: the 120 minute timer.
Sessions around 90 minutes
Written sessions from the Timer AI library, each with its own steps, voice and scene.
Take this timer to your phone
The timer on your Lock Screen and in the Dynamic Island, as a Live Activity.
Download on the App StoreGet it on your iPhone
Point your iPhone's camera at the code to open Timer AI on the App Store.