About Motorway: 130 standard, 100 by day — and the fixed 80 on some ring roads: which statement is WRONG?
The standard is 130 km/u; 100 km/u only applies between 06:00 and 19:00.
The exact time window is 06:00 to 19:00, not 07:00-20:00.
The permanent 80 km/u on some ring roads only applies during the day, just like the ordinary daytime reduction.
The text explicitly calls 130 km/u 'the standard maximum speed'; 100 km/u is the speed 'reduced' between 06:00 and 19:00.
Explanation
trap: clock overgeneralisation. Book p.119 - the ring-road exception of 80 km/u is a PERMANENT, location-bound maximum, independent of the clock; it does not change between day and night