Unify OpenScape Desk Phone IP 55G - Automatic Daylight Saving Time

216 Individual phone configuration
Automatic daylight saving time
The Auto DST setting is provided for information purposes and can only be
changed by your administrator.
z
You can also access this information via the WBM interface  Page 247.
Press the key shown until the "Settings" tab is active.
Confirm the option shown.
if nec. j Enter and confirm the user password.
Select and confirm the option shown. 
You can manually set the daylight saving time if No is entered here  Page 215.
Services
User
Date and time
Auto DST