How to Set the Date and Time on Your iPhone
You can set the date and time on your iPhone. The time on your iPhone can be reported in a 12- or 24-hour format.
In most cases, the time is reported as 11:32 p.m. But if you prefer military time, it can be reported as 23:32. Just tap the 24-Hour Time setting (under Date & Time) so that it is On, if military time is your preference.
This is just one of the settings you can adjust under Date & Time. You can also have the iPhone set the time automatically using the time reported by the cellular network. Obviously, letting the iPhone find the time, itself, is less work for you (the iPhone will even adjust the time if you are traveling and change time zones).
If it is turned off, you’ll be asked to choose the time zone and set the date and time manually. Here’s how:
Tap Set Automatically so that it is Off.
You see fields for setting the time zone and the date and time.
Tap the Time Zone field so that the current time zone and virtual keyboard are shown.
Tap out the letters of the city or country whose time zone you want to enter until the one you have in mind appears. Then tap the name of that city or country.
The time zone is automatically filled in for that city.
Tap the Set Date & Time field so that the time is shown. Then roll the bicycle lock–like controls until the proper time is displayed.
Tap the date shown so that the bicycle lock–like controls pop up for the date. Then roll the wheels for the month, day, and year until the correct date appears.
Tap the Date & Time button to return to the main Date & Time settings screen.