Becker U30 Notice De Montage Et D'utilisation page 49

Summer/winter time
The display will indicate which time has been set.
The (S) in the upper left hand corner of the display stands for
summer time.
(0S9:0ß0)
The (W) in the upper right hand corner of the display stands for
winter time.
(0ß8:0W0)
If the present setting is incorrect and does not correspond with the
current time, you can simply update the time by pressing the sum-
mer/winter button. The selected setting will appear in the display
and the time will be changed by one hour.
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