Use a 24 Hour Clock on the iPhone & iPad
The iPhone and iPad default to use a 12 hour clock in the USA and Canada, but you can easily switch to 24 hour time (often called Military time) through a quick settings adjustment in iOS.
If you wish to enable the 24 hour clock in iOS, just do the following:
- Open “Settings” and tap on “General”
- Scroll down and choose “Date & Time”
- Toggle the flip switch “24-Hour Time” to ON, then close out of Settings
The setting is immediately visible throughout iOS on the iPhone, iPad, or iPod touch. You’ll see the 24 hour time on the lock screen, as well as at the top of the device on the screen clock, and anywhere else system time is displayed in iOS.
This can be helpful when traveling to other countries that don’t use the 12 hour notation, or if you just prefer to use the 24 hour clock.
If you wish to change it back to a 12 hour clock, simply return to the same settings section and toggle the switch again. As before, this setting will impact all iOS system clocks including the time show on the lock screen, and no device reboot is required. This is also the same on all iOS devices and all iOS versions, regardless of what system software the iPhone or ipad is running.