The noise protection is regulated in Germany, like so much in different regulations and guidelines. Most people only know the rule that on Sundays a particularly protectable rest time from 13 to 15 o’clock is to be kept.
But if you dive deeper into the protection against noise, you will learn that there is not only on Sundays and public holidays the prescribed siesta, but also in the morning (6 to 9 o’clock) and evening hours (20 to 22 o’clock ) should take into account the increased need for rest.
On weekdays (Monday to Saturday), there are rules only in the morning and in the evening (6 to 7 clock and 20 to 22 clock), but not at lunchtime.