Ducati XDIAVEL Owner's Manual page 185

When entering the function, available settings are
indicated on the left: YEAR, MONTH, DAY, while
current date is indicated on the right (e.g.:
SETTING MENU>DATE SET
2014/08/02).
Year setting
YEAR
Select "YEAR" option, by pressing button (1) or (2). 2014 / 08 / 02
MONTH
Once highlighted, press CONFIRM MENU button (4).
DAY
Year value starts flashing.
Press button (1) to decrease year value by 1 unit:
EXIT
2099, 2098, ... 2000, 2099.
Press button (2) to increase year value by 1 unit: 2000,
2001, ... 2099, 2000.
Fig. 99
Once you reach the value to be set, press button (4)
and the set year will stop flashing.
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