If energy matters more than time, then the practical question is simple: which part of the day most needs protecting?
Not the whole day.
Not the perfect routine.
Just one energy window.
What is an energy window?
An energy window is a period of the day when you are more likely to have the attention, steadiness or motivation needed for meaningful work.
This is what the authors of The 12 Week Year call a strategic block.
“A strategic block is a three-hour block of uninterrupted time that is scheduled into each week.“
These blocks are for progressing strategic projects. For most people, one strategic block per week is sufficient.
But it doesn’t need to be three hours.
Find what works for you.
It might be:
- the first hour after breakfast
- the quiet half-hour before meetings begin
- the period after a walk
- the early evening before you are too tired
- a regular slot when interruptions are less likely
The point is not that this window is always perfect.
The point is that it is usually better than the alternatives.
Why one window is enough
Many productivity systems fail because they ask for too much change at once.
They assume you can redesign your whole day, control your environment and behave like a more disciplined version of yourself.
That might work for a while.
But when life becomes busy, stressful or unpredictable, the system often collapses.
Protecting one energy window is more realistic.
It gives you one place in the day where important work has a better chance of happening.
Choose the right work for the window
Once you identify your best energy window, do not fill it with whatever shouts loudest.
Use it for work that genuinely needs your better self.
Creative work.
Deep work.
For example:
- writing
- planning
- problem-solving
- difficult decisions
- creating
- coding
- meaningful conversations
- anything you keep avoiding because it takes emotional effort
Low-energy tasks can go elsewhere.
Email, admin and quick replies should not automatically take your best attention.
Protect the window
Protecting an energy window does not need to be dramatic.
Start small.
You could:
- block the time in your calendar
- turn off notifications
- decide the task the day before
- keep the window free from routine admin
- tell others you are unavailable during that time
- use the first 10 minutes to settle, rather than rushing straight in
- go somewhere you know you will not be distracted: a café, a library, even another room
The aim is not to create a perfect bubble.
The aim is to reduce avoidable friction.
A simple weekly practice
At the start of the week, ask yourself:
- When do I usually have the most useful energy?
- What work most deserves that energy this week?
- What could easily steal that time?
- What boundary would make this window easier to protect?
- What is the smallest version of this practice I can actually sustain?
Then choose one window.
Not five.
One.
Make it sustainable
Protecting one energy window is not about forcing yourself to produce more.
It is about treating your attention as something valuable.
It recognises that your best work does not happen simply because there is space in the diary.
It happens when the right work meets the right kind of energy.
Start with one window.
Protect it.
Use it well.
Then notice what changes.
Photo by Kim Woojeong on Unsplash
