Set a 25-Minute Timer: Why 25 Works (and When to Change It)

25/5 balances momentum and freshness for most tasks. If you’re regularly interrupted, try 15/3. For deep work, try 40–50/7–10.

• Writing, reading, email triage: 25/5
• Heavy coding, research, problem sets: 50/10
• Getting started when stuck: 10–15/3

Set it up instantly with our free 25-minute timer.