Question about Teufel One

In the settings, the updating of date and time can be configured: via DAB signal, via FM signal or not at all. I set this to DAB and the time change was carried out automatically.
In this context, however, I would also like to mention two problems that persistently occur, at least with me (updating via DAB): 1. the clock is always one minute behind and 2. a reproducible error: every time I wake myself up with the radio and then turn off the alarm, the wrong day of the week is displayed, always one day back, e.g. Monday instead of Tuesday. This is corrected in the course of the day, but it is annoying and can lead to problems if the alarm timers are set to be active only on a certain day of the week.