Fair enough.

If Austrocontrol lists the opening times in both sections, they would have a potential problem on updates.
If there are cross references, the user has the problem.
Business as usual.

We can probably make them disappear at weekends. Attaching notes is a nice idea but may be slightly more difficult. The reason is that the activity times of the airspace are not actually published next to the airspace definitions themselves; they're published elsewhere. You have to read ENR 1.1 and then look in the AD section to see the time of activity of the AD. This means that if any of this "other" information is ever updated, it would probably not be picked up automatically by our data team who are only looking for changes to the airspace definitions. We try to avoid opening ourselves up to this kind of potential future error.

Maybe you can fade out the airspaces on weekends and state the activity hours as a "Notes: Active from xxx to yyy" entry in the Info-Box just like at LOR16 (NE of LOWW)?

I will ask my colleague to review the activity times in our data to see if we can change from every day to weekdays. That's as far as we might be able to go, since we have to choose from one of only a limited set of activity times in our database.

Maybe there is an error in austrian airspace data?
In SD, all military airspaces (CTR, TMA, MATZ) in austria state a duty time of "every day"

As stated in AIP ENR 1.1-62 2.8.1.3. this airspaces exist only during their temporary military usage.
According to Austrian AIP AD 2 the military aerodromes LOXA, LOXN, LOXT and LOXZ only have limited duty times.
Additionally this airspaces should be faded out in Weekend View.

Best Regards
Herbert