Every parent has seen the headline number — one hour a day — and quietly concluded they're failing. The figure gets repeated without its age range, without its exclusions, and without the far more useful advice sitting alongside it.

Here's what the main guidelines actually recommend by age, what they leave out, and the three factors that matter more than the total. A note on framing before we start: these are recommendations from paediatric bodies, not medical thresholds, and the research behind them is more mixed and more debated than the confident numbers suggest.

The Guidelines by Age

The most widely cited guidance comes from the American Academy of Pediatrics and the World Health Organization. They broadly agree:

  • Under 18 months: no screen time other than video calls with family.
  • 18–24 months: very limited, and only high-quality content watched together with an adult rather than alone.
  • Ages 2–5: about one hour per day of high-quality programming, ideally co-viewed. This is where the famous "one hour" figure comes from.
  • Ages 6+: no fixed number. The AAP deliberately stopped giving one, recommending instead that families set consistent limits that protect sleep, physical activity, meals, homework and time with other people.

That last point is the one most reporting drops. For school-age children there is no official hourly limit — the guidance is explicitly about what screens must not displace.

What the Numbers Don't Count

Three exclusions change the picture substantially:

Video calls don't count. A grandparent on a screen is a conversation, not passive viewing, and has been treated differently from the beginning — including for babies.

Schoolwork generally doesn't count. Homework on a laptop is not the thing these limits were written about. With so much school work now digital, counting it would make the guidance meaningless.

Co-viewing changes what an hour is. An hour watching alongside your child, talking about what's happening, is a different activity from an hour of solo autoplay. For the under-fives especially, the adult's presence is much of what makes the content useful.

The number is the least useful part of the guidance. Two children can each have ninety minutes a day and have completely different experiences: one watching a programme with a parent after school, the other on autoplay at bedtime with the ending enforced by a parent grabbing the tablet. Same total, opposite outcomes. If you only change one thing, don't change the minutes — change what surrounds them.

The Three Things That Matter More

1. What it displaces. This is the core of the modern guidance. Screen time is a problem mainly when it takes the place of sleep, movement, conversation, reading or play. An hour that replaces an hour of boredom is very different from an hour that replaces an hour of sleep — which is why the timing of screens matters as much as the amount.

2. When it happens. Screens in the hour before bed are the single most consistently supported concern, because of both light exposure and the alertness that content produces. Screens during meals displace the family conversation that meals exist for. Our bedtime routine guide covers protecting the wind-down.

3. How sessions end. The most underrated factor, and the one families feel daily. A session that ends in a fight teaches a child that screens are something to be defended and that you are the person who takes them away. The total is irrelevant to that dynamic — a well-ended thirty minutes costs you far less than a badly-ended thirty minutes.

Why Endings Cause More Damage Than Totals

Consider what actually happens in most homes at the end of screen time. The child is absorbed. You announce it's finished. From their side, something enjoyable has been removed without warning — because a child in a game has no sense of elapsed time at all and genuinely did not see it coming.

The resulting argument gets read as evidence that screens are addictive. Often it's simpler: it's the ordinary response of a young person to a surprise ending, and it would happen with any absorbing activity interrupted the same way.

Which is why the practical fix isn't cutting the allowance. It's making the ending visible from the start. A countdown the child can watch for the whole session means the finish arrives expected rather than imposed — and the parent stops being the enforcer. That's what a screen time timer is for, and our screen time management guide covers the handover techniques in detail. Games need their own approach, since stopping mid-match carries a real cost the child is right to care about.

Setting Limits That Hold

  1. Decide the length before the screen goes on, not while your child is mid-episode and negotiating.
  2. Make the ending visible. A countdown they can see does the job your repeated warnings were trying to do. See time blindness in kids for why verbal warnings so often fail.
  3. Protect the fixed points first — sleep, meals, homework, outdoor time — then fit recreational screens around them. This is the actual structure of the official advice for over-sixes.
  4. Keep the last hour before bed screen-free if you change nothing else. It's the best-supported single limit.
  5. Be consistent rather than strict. A predictable forty minutes beats a nominal twenty that becomes ninety whenever you're busy — inconsistency is what makes children negotiate every single time.
  6. Co-view when you can, particularly under five. It changes the value of the time more than trimming it would.

A Note on Guilt

Screen time guidance generates more parental guilt than almost any other topic, and a lot of that guilt is manufactured by a single decontextualised number. Worth holding onto: the one-hour figure applies to ages two to five; there is no official limit for school-age children; video calls and schoolwork sit outside it; and the underlying research is genuinely contested rather than settled.

If your children sleep well, move, eat with you, do their schoolwork and have interests beyond a screen, you are already meeting the substance of the guidance — whatever the total says. And if screen time is a daily battle in your house, that's a problem worth solving for its own sake. It's usually a problem about endings, not about hours.

Change the ending, not the number. Tonight, agree the length before the screen goes on and run a countdown your child can see for the whole session. Watch whether the handover goes differently when nobody is surprised. Download Tokimo free, or browse all the visual timers for kids.

Frequently Asked Questions

How much screen time should a child have per day?

The most widely cited guidance recommends no screen time other than video calls under 18 months, very limited co-viewed use from 18 to 24 months, about one hour per day of high-quality programming for ages two to five, and consistent family-set limits from age six upward rather than a fixed number. These are recommendations rather than medical thresholds, and quality and timing matter alongside the total.

Is the 1 hour screen time rule realistic?

For many families it is not, and treating it as a pass or fail test tends to cause guilt rather than change. The hour figure applies to ages two to five and excludes video calls and, in most interpretations, schoolwork. A more useful goal is protecting sleep, meals, physical activity and homework first, then fitting recreational screens into what remains.

Does educational screen time count toward the limit?

Most guidelines separate schoolwork and video calls with family from recreational viewing, and count only the recreational portion. Co-viewing also changes the picture, because watching alongside a child and talking about what you are seeing turns passive viewing into shared attention, which is considerably more valuable than solo screen use of the same length.