A fixed time is clearer than individual neighbours’ sleeping patterns.
Night-time quiet protects rest against disturbing noise. Its typical start therefore depends neither on the changing sunset nor on when one individual goes to bed. The question expects 10 pm.
Berlin also shows why closer checking can matter: its official overview gives different night hours for construction sites than for general noise protection. Equipment, events and authorised exceptions can also be subject to special rules. The locally applicable rule determines an individual case.
The other three answers
The other answers make the threshold too late or uncertain.
when the sun sets
Sunset varies with season and place. It is not the fixed time sought here.
when the neighbors go to sleep
Neighbours go to sleep at different times. The rule sought does not depend on each person’s daily routine.
at midnight
Midnight would be too late for the starting time sought. The correct exam answer is already 10 pm.
Night-time quiet means neither complete silence nor unlimited noise beforehand.
Whether noise is impermissible depends on the applicable rules and circumstances. The number 22 alone does not answer questions about specific limits, exceptions or permissible everyday sounds. Additional building rules may also matter.
Substantially disturbing or avoidable noise can also be impermissible during the day. Sundays, public holidays and particular equipment may have separate rules. The exam answer is therefore an orientation point, not complete noise-law advice.
Night-time quiet · Berlin example · State noise-protection law ↗22:00 = 10 pm = typical night-time quiet.
Remember the exam time and also check local rules for actual activities.
Three words for this question
- die Nachtruhenight-time quiet
- A period of special protection for rest at night.
- die Ruhestörungdisturbance of the peace through noise
- Noise that disturbs other people.
- Rücksicht nehmento show consideration
- To take others’ needs and rights into account in one’s conduct.