The iPhone clock app has an oddity not many people know about

What happened

But there's a hidden limit to how far your choices will stretch, though most users won't reach it. 11, 2026 2:45 pm EST Olga Demina/Getty Images Add Engadget on Google: Preferred Source Google Discover The iPhone Clock app has been around since the original iPhone launched 19 years ago, and for most, it's always been a fairly straightforward default app. Apple is a software and consumer electronics company based in Cupertino.

Sure, you can set your iPhone's alarm to any time you choose. Big Tech Apple The iPhone clock app has an oddity not many people know about There’s a limit to how far your alarm settings will scroll, and most people never reach it.

To put it simply, the alarm hour and minute scrolls seem infinite at first glance, but rapidly scrolling through the hours and minutes will eventually reach a dead end at 4:39. For those with a preference for military time, it ends at 16:39.

Open the Clock app, select Alarms, tap the + button and start scrolling through the hours and minutes until you reach the end. It will take several swipes, but not too many if you scroll through as fast as you can, which is the reason why most people never noticed it in the first place. It tells you the current time, including a moving second hand.