Ricoh PENTAX WG-10 Quick Manual page 16

Press the four-way controller (5), then press the four-way
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controller (3) to move the frame to [Date].
Press the four-way controller (5) to select [01] (month),
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[01] (day) or [2013] (year), then use the four-way controller (23)
to set the current date and time.
Press the four-way controller (5), then press the four-way
13
controller (3) to move the frame to [Time].
Set the time in the same manner as in
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four-way controller (5).
Press the four-way controller (3)
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15
to select [Settings complete] and
press the 4 button.
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. Then press the
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Date Adjustment
mm/dd/yy 24h
Date Format
Date 01/01/2013
Time 00:00
Settings complete
Cancel
MENU
OK
OK