Miele DG 4050 Operating And Installation Instructions page 17

^ Turn the multi-function selector clockwise until the required
hour is shown in the display. Then press it gently to confirm
your selection.
After setting the hour, the minutes will be highlighted.
^ Turn the multi-function selector clockwise until the required
minutes are shown in the display. Then press it gently to
confirm your selection.
You will then be prompted whether to have the time showing
in the display or not. If this prompt does not appear, proceed
as described in "Changing settings - Display".
On
If you select "Off" the display will go dark in 60 seconds. The
time of day continues to run unseen in the background. It will
reappear for 60 seconds if you press the On/Off switch or the
multi-function selector gently.
If you select "On" it will remain in the display all the time.
Because this oven is pre-equipped for the Miele|home
system the following message will appear briefly in the
display:
Mieleqhome
q
compatible appliance
The current time of day will then reappear in the display and
your steam oven is now ready to use.
Time
Using for the first time
10 : 15
Clock: Display
10 : 15
Off
Clock
17