Mercedes-Benz Comand Operator's Manual page 216

System settings
System settings
Setting date and time format
Press the Format soft key.
The Format menu for selecting the time
and date display formats will appear.
Option Symbol
_
Format selected
-
Format not selected
216
Press g or G to select a format for
date and time.
Press E.
The format setting is applied.
Press the Back soft key.
or
Wait a few seconds.
The Date/Time menu will automatically
appear.
Selecting the country
You can only use this function if you use
the GPS.
Press the Country soft key.
The country list will appear.
Press g or G to select a country.
If a country has multiple time zones,
e.g. Canada and USA, you can select
the applicable time zone and, if
applicable, daylight saving time
settings.
Press E.
The settings are applied.