The Saxon Minister of Health Petra Köpping informed on Tuesday that Germans can stay in the Czech Republic for 48 hours without having to be in quarantine. Czech citizens are only allowed to stay in Germany for 24 hours without subsequent quarantine.
There are exceptions for commuters and direct neighbors
Commuters should be exempted from the quarantine requirement. Regular testing options continue to exist for them. In addition, people who live in the border region should continue to have neighborly encounters. In principle, Saxony wanted to treat the Czech Republic like a region in Germany in which such a difficult situation would arise.
Source: MDR Jump