Hyundai IT HLT-2672 - Manual (Page 34)

Selecting CLOCK for the menus
3
Press the PR+/- button to select ON TIME and then
press the VOL(+) button.
Press the PR+/- button to select time and PR, VOL, ON/OFF.
Press the ENTER button.
4
Press the PR+/- button to select AUTO SLEEP and then
press the VOL(+) button.
Press the PR+/- button to select ON/OFF.
Press the ENTER button.