Hitachi ZW 310-6 Operator's Manual page 224

Adjusting the Clock
 The clock can be switched between 24-hour and 12- hour
display.
 Press the [UP] or [DOWN] button and select either 24-hour
or 12-hour display.
Press the [MODE] button to go to the "hour" adjustment
screen.
Press the [UP] or [DOWN] button to adjust the "hour".
Press the [MODE] button to go to the "minutes" adjustment
screen.
Press the [UP] or [DOWN] button to adjust the "minutes".
Pressing the [MODE] buttons sets the time and it returns to
the Menu screen.
Press the [PTY] button on any adjustment screen to return
to the previous screen.
OPERATOR'S STATION
 Sample Displays
1-158
Menu Screen
(Set)
24 Hour Display
(Set) (Return)
Hour Adjustment
(Set)
(Return)
When in 24 Hour Display
Timing of setting the final values
24 Hour Display
24 Hour Display
(Return)
12 Hour Display
Minute Adjustment
(Set)
Normal Screen
MPTC-01-077
12 Hour Display (AM)
12 Hour Display (PM)
MPTC-01-078