New Delhi, Sept. 2 -- Everyone loves a well-designed app and with Apple, we expect things to work smoothly, almost magically. So, it's no wonder the iPhone's alarm clock, with its spinning wheels for picking the hour and minute, feels like one of those things that "just works". Most of us scroll to our time, set the alarm, and move on with our day.

But as some eagle-eyed users recently shared online, this little design hides a cheeky secret. It turns out, if you have a minute (or five) to spare and decide to keep flicking that wheel instead of stopping at your wake-up time, something strange happens: eventually, the numbers stop.

Normally, when you use the alarm on your iPhone, those scrolling hour and minute wheels look as if they coul...