104-Minute Timer

A free, no-signup 104-minute timer that runs in your browser. Best for marathon study or work sessions — pair with longer breaks.

Start the 104-minute timer →

When to use a 104-minute timer

104 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 104 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 →