Komatsu D155A-6 Operation & Maintenance Manual page 93

EXPLANATION OF COMPONENTS EXPLANATION OF COMPONENTS
2. Select "Clock Adjustment" on the user menu, then press switch
F6. The screen switches to the time adjustment selection
menu screen.
The following three items can be changed.
(a) Clock setting
(b) 12/24 hour display mode
(c) Daylight saving time
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OPERATION OPERATION