I am not quite sure about this topic, I searched through the OSM wiki and this forum and found nothing. Sorry if I missed a good site where the questions I have are answered.
For example I want to add the opening hours of a certain local store to OSM. The opening hours can be searched for on this webpage in my case: https://www.nahkauf.de/maerkte (German supermarket chain). Am I allowed to do that? In general, do I violate copyrights if I take the opening hours of a public website and add them to OSM without asking? Is this kind of data not protected at all? Or is it common for our community to ignore, for example, opening hours published on official websites and better try to look for yourself in person?
For me, German laws would apply but I am asking in English because I am interested in differences or problems in other countries.
Thanks for answering.