Here's how you can set the clock on a JVC KD-R200 car radio:
Press and hold SEL (select) for more than 2 seconds. "DEMO," "CLOCK H," "CLOCK M," "DIMMER," or "AMP GAIN" appears on the display.
Set the hour
1 Select "CLOCK H" (hour) if not shown on the display.
2 Adjust the hour.
Set the minute
1 Select "CLOCK M" (minute).
2 Adjust the minute
DEMO
DEMO ON - Display demonstration will be activated automatically if no operation is done for about 20 seconds.
DEMO OFF - Cancels.
CLK DISP
ON -Clock time is shown on the display at all times when the power is turned off.
OFF - Cancels; pressing DISP will show the clock time for about 5 seconds when the power is turned off.
CLOCK H (Hour)
1–12 - [Initial: 1 (1:00)]
CLOCK M (Minute)
00–59 - [Initial: 00 (1:00)]
View JVC KD-R200 CD Receiver Instructions/Installation Manual for more help.