Komatsu PC450-8 Operation & Maintenance Manual page 128

DETAILED CONTROLS AND GAUGES
1. On the standard screen, press switch F6.
2. Select "Clock Adjustment" on the user menu, then press
switch F6. The screen switches to the time adjustment
selection menu screen.
q
The following three items can be changed.
(a) Clock setting
(b) 12/24 hour display mode
(c) Daylight saving time
3. On the clock adjustment selection screen, it is possible to carry out the following operations with switches F3
to F6.
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OPERATION