80-Minute Timer

A free, no-signup 80-minute timer that runs in your browser. Best for ultradian deep-work blocks — your body's natural focus rhythm.

Start the 80-minute timer →

When to use a 80-minute timer

80 minutes is a deep-work marathon. Use it for high-stakes work like exam prep, architecture, or one-sitting essays. Pair with a longer break after.

How to run it

1. Pick ONE task. Write it down.
2. Open Promodify, set the focus length to 80 minutes.
3. Phone in another room. Start the timer.
4. When the bell rings, stop. Take a proportional break.

Related timers

• 15-minute timer
• 20-minute timer
• 25-minute timer
• 30-minute timer
• 45-minute timer
• 60-minute timer
• 90-minute timer

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