You can select from 12 hour-clock or 24 hour-clock.
tab - “Time Display,” and then press
.

or
to select the desired menu item, and then press
.
STOP to exit the menu mode. You can select one of the menu items available.
12-Hour:
12:00AM = midnight, 12:00PM = noon
24-Hour:
0:00 = midnight, 12:00 = noon