31-Minute Timer

A free, no-signup 31-minute timer that runs in your browser. Best for deep-work intervals — papers, design sprints, hard problems.

Start the 31-minute timer →

When to use a 31-minute timer

31-minute blocks suit deep work — coding, writing, design, research. Long enough to load a hard problem into working memory.

How to run it

1. Pick ONE task. Write it down.
2. Open Promodify, set the focus length to 31 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

Open Promodify →