The app also allows the user to pause, reset, or use the stopwatch's lap feature. The stopwatch section allows the user the ability to time events and see how long they take. The alarms section allows the user to view all of their alarms on in a week view, create new alarms, and turn off and on existing alarms. The user can also remove cities by swiping left and clicking the delete button. The user can add new cities by tapping a plus icon at the top of the screen and typing in the name of the city the user wants to add.

The World Clock section allows the user to access the temperature, time, and pressure of major cities of their choice. The icon of the macOS version also behaves in this manner when installed in the Dock or Launcher. The app icon shows the user the current time, making it one of the only iOS / iPadOS apps with a dynamic icon (the other being Calendar). The app includes world clock, alarm, stopwatch, and timer functions.

A corresponding Mac version was reintroduced in macOS 13 (Ventura). The modern version of the Clock app was introduced with iPhone OS 1 for the first iPhone and iOS 6 for iPads. In Mac OS X 10.4 (Jaguar) to macOS 10.14.6 (Mojave), it appeared in the Dashboard as a World Clock widget. A Clock application, which had originally been developed for NeXTSTEP, was included with Mac OS X 10.0 to 10.2.8. It was renamed ' Alarm Clock', which was included with subsequent versions of classic Mac OS until it was discontinued in favor of an expanded Date & Time control panel in System 7.5. Clock was first included as a desk accessory with System 0.85, which shipped on a demo floppy with the original Macintosh 128K.

Mac dashboard widgets alarm clock