Ducati XDIAVEL Owner's Manual page 187

Day setting
Select "DAY" option, by pressing button (1) or (2).
Once option is highlighted, press button (4). SETTING MENU>DATE SET
Day value starts flashing.
Press button (1) to decrease day value by 1 unit: 31,
YEAR
30, ... 01, 31.
2014 / 08 / 02
Press button (2) to increase day value by 1 unit: 01, MONTH
02, ... 31, 01.
DAY
Once you reach the value to be set, press button (4)
and the set day will stop flashing.
EXIT
Fig. 101
186