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When: Summary in 5 Key Points

Written by brefly editorial teamUpdated August 27, 2026
✍️ Daniel Pink📅 2018📚 Productivity📖 288 pages → 2 min brief
The brief
Strategic timing can dramatically improve outcomes in work, health, and personal life.
The book introduces the "When" framework: Beginnings, Middles, and Endings.
Understanding chronotypes helps align tasks with natural energy cycles.
The optimal time for creativity is often during a mid-afternoon slump.
Effective decision-making involves recognizing the power of 'peak' and 'trough' moments.

Key ideas worth keeping

Aligning your actions with natural rhythms unlocks greater effectiveness.
Knowing when to start, when to push through, and when to stop is crucial.
Our daily energy fluctuations offer predictable opportunities for specific tasks.

Who should read the full book

Anyone seeking to optimize their daily routines and decision-making will find value in "When." Professionals, students, and individuals interested in productivity and behavioral science should read it. Those already deeply familiar with chronobiology or habit formation might find less new material.

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