It’s critical that your phone has the correct time and date, not only to keep you on track but also to ensure that all of your device’s functionalities perform properly. Allow your phone to set the time and date for you if you have access to a mobile network. If not, you can manually set the time by selecting a time zone.
1. Swipe up on the home screen to access your apps
2. Tap the Settings app
3. Tap General management
4. Tap Date and time
5. Tap Use 24-hour format