Jarv JRV-SBD1000 User Manual page 8

5) Time Setting: First, you will need to select your time
format and then adjust your time setting.
In the state of time display, Press the SET button for 2
seconds, then press the MODE button once to select the
time format, either standard (12HR) or military (24HR),
next, press the SET button once to confirm the format
and enter the time setting interface, the hour digital
display will flicker, now press the MODE button to adjust
the hour, when the hour setting is ok, then press the SET
button once, the minute digital display will flicker, now
press the MODE button to adjust the minutes. Press the
SET button to confirm and exit.
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