If you’re like most people, you probably have an iPhone that can be used as a timepiece. But if you’re a military person or someone who works in an environment where time is important, there are a few things you need to know about how to change the clock on your iPhone to military time. First, make sure that your iPhone is jailbroken. This will allow you to use features like Time Machine and AirPlay2. Second, make sure that your phone is rooted. This will allow you to do things like install custom ROMs and root devices. Third, make sure that your phone has at least iOS 11 installed. This will include the Time Machine feature and the ability to change the clock’s time zone. fourth, open up System Preferences and select Clock & Date in the General section. fifth, select Military Time from the list of options and click on the Change button. Sixth, enter in a new time zone name (e.g., Europe/Paris) and click on OK. seventh, select whether or not you want to display Daylight Saving Time (DST) information (if enabled) and click on OK again. eighth, return to System Preferences and select Clock & Date in the General section again and then click on Set as Default for future uses . ninth, close System Preferences by pressing Command-X . tenth, restart your iPhone by pressing Home button + Power button at once .