VDO Cyclecomputing M1 WL Manual page 15

M1 WL
Settings – clock
In the VDO M1 WL, you can set the clock in 12-hour AM/PM
format or 24-hour format.
Press and hold the SET button until the settings menu
opens.
"Language" appears on the display.
Press the BIKE button to scroll to the setting for the clock.
Press the SET button to open the setting for the clock.
To switch to the 12-hour AM/PM format,
press the BIKE button.
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