Date & Time
In the App list, tap "Settings"
to open the system settings app, and select "Date & time".
If the "Automatic date & time" option is enabled, system date and time will be synchronized automatically with network time
when you connect your device to a Wi-Fi network.
To set the time manually, you need to disable "Automatic date & time"& Automatic time zone.
Besides, you can also set time zone and time format as per your needs.
21