Ducati MONSTER 1200 Owner's Manual page 180

Month setting
Select "MONTH" option, by pressing button (1) or (2).
DATE SETTING
Once option is highlighted, press button (4).
Month value starts flashing.
YEAR
Press button (1) to decrease month value by 1 unit:
2015 / 06 / 23
12, 11, ... 01, 12.
MONTH
Press button (2) to increase month value by 1 unit: 01,
DAY
02, ... 12, 01.
Once you reach the value to be set, press button (4)
EXIT
and the set month will stop flashing.
Fig. 103
179