Porsche Boxster Owner's Manual page 134

Navigation
– Integrated in the BC (Navigation instructions
can be recalled on the on-board computer
display)
– When turning off (Navigation instructions are
only shown before changing direction)
Basic setting
– Restore the basic setting of the on-board
computer
Language
– Select language version
132
Controls, Instruments
12/24h mode
Select time mode:
– 12h (small squares on the right side of the time
display for AM/PM),
– 24h