Hyundai ix35 2015 Owner's Manual page 341

Features of your vehicle
Day Setting
Press the SETUP
[Clock/Day] Select [Day Settings]
Use the , buttons to set the Day,
Month and Year setting.
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Time Format
key Select Press the
[Clock/Day] Select [Time Format]
This feature is used to change the clock
format between 12hr or 24hr.
Clock Display
SETUP key Select Press
[Clock/Day] Select
(Power off)]
This feature is used to display a clock on
the screen when the audio system is
turned off.
the SETUP key Select
[Clock Display