Nextar SNAP3 - Automotive GPS Receiver Hardware Instruction Manual page 15

General Setup
2.Date
In the Date menu, tap
Tap to confirm and return.
3.Time:
In the Time menu, tap
Tap to confirm and return.
Volume
Tap in the Setup menu to enter Volume menu, as shown below:
, to set the Year, Month and Day.
, to set the Hour, Minute, and Second.
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