Dodge Challenger 2018 Owner's Manual page 411

Setting Name
Show Command List
Clock
After pressing the "Clock" button on the touchscreen, the
following settings will be available:
Setting Name
Sync Time With GPS — If
Equipped
NOTE:
The "Sync Time With GPS" feature will allow you to automatically have the radio set the time.
Set Time Hours
Set Time Minutes
Time Format
Show Time In Status Bar — If
Equipped
NOTE:
The "Show Time In Status Bar" feature will allow you to turn on or shut off the digital clock in the status bar.
Selectable Options
Always
+
+
12 hrs
With Help
Selectable Options
MULTIMEDIA 409
Never
–
–
10
24 hrs