Derzeit and zurzeit are in fact synonyms. However, in South-German areas you should always use zurzeit cause the majority of people will understand it as kind of formal, mad or even snooty to use derzeit. This is just a dialect thing.
Derzeit and zurzeit are in fact synonyms. However, in South-German areas you should always use zurzeit cause the majority of people will understand it as kind of formal, mad or even snooty to use derzeit. This is just a dialect thing.