The time can be set manually or via GPS.
Select: MENU button > Settings > left control button > MMI settings > Date & time.
Set automatically
The time and date are automatically updated when this function is switched on 
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.Time
The Time can be set manually. The Set automatically function must be deactivated to do this.
Date
The Date can be set manually. The Set automatically function must be deactivated to do this.
Time zone
When selecting the correct time zone, a list of corresponding countries is displayed as an example.
Automatic time zone*
When the automatic time zone option is activated, the time is automatically adjusted to the relevant time zone.
Time format
When this option is set to 24h, for example 13:00 will be displayed as the time. When it is set to AM/PM, for example 1:00 PM will be displayed.
Date format
When this option is set to DD.MM.YYYY, for example 31.12.2015 will be displayed as the date. When it is set to MM/DD/YYYY, for example 12/31/2015 will be displayed. When it is set to YYYY-MM-DD, for example 2015-12-31 will be displayed.