We are all guilty of looking at our smartphones a little too much.
Maybe you spend your evening glued to your iPhone screen, while your other half is complaining about their day.
Or maybe it's the first thing you grab in the morning – and the last thing you touch at night.
With iPhones so commonplace, you may think you know yours like the back of your hand.
But despite some owners having used the handsets for a decade, there are people who have only just noticed a cool feature, according to the Mirror.
And it's been staring them right in the face.
You see, if you're the type of person who quickly taps the clock App on your home screen when you need to use the stopwatch, then you might have missed it too.
But if you're quite observant and have taken a second to actually look at it, you will have noticed that the clock app logo ACTUALLY MOVES.
It's got a second hand which slowly spins around. In fact, it's a real, working clock.
So you don't necessarily have to look at the numbers at the top of the screen if you want to tell the time.
You might be thinking that this is painfully obvious and you've known about it for years, but some people really are only just 'clocking' it.
One person tweeted last week: "THE CLOCK APP ON THE iPhone 7 MOVES. WHAT THE F***. HOW DID I NOT NOTICE THIS."