The maths behind the numbers
The calculation is simple, which is exactly what makes it hit so hard:
Hours per year = daily hours × 365
Full 24h days = hours per year ÷ 24
Weeks of waking life = hours per year ÷ (16 × 7)
Books read = hours per year ÷ 5 (≈ 5 hrs to read an average book)
Full 24h days = hours per year ÷ 24
Weeks of waking life = hours per year ÷ (16 × 7)
Books read = hours per year ÷ 5 (≈ 5 hrs to read an average book)
We use 16 waking hours per day for the "waking life" figure — because the time you spend on a screen isn't coming out of your sleep, it's coming out of the hours you're actually awake and could be living.
What the average looks like
Most research puts adult screen time at 6–7 hours a day across all devices, with 2–3 of those hours on social media. At just 3 hours a day, you'll spend around 46 full days a year looking at a screen. Push it to 6 hours and that becomes over 90 days — three months of every year.
This isn't about guilt. Screens are useful. It's about noticing the trade: every hour is a choice, and seeing the yearly total makes the choice visible.
How to actually cut it down
- Delete the worst offender from your home screen. Friction works. If you have to search for the app, you'll open it less.
- Switch to grayscale. A black-and-white screen removes the dopamine-bright colours apps are engineered around.
- Replace, don't just remove. Scrolling fills a gap. Give it a competing habit — a book by your bed, a walk, a group chat that's about doing things, not watching them.
That last one is the hardest and the most effective. It's a lot easier to put the phone down when there's something — and someone — pulling you toward a better use of the time.