>How long did it take you? Depends on the language and were you're coming from but to get C2 proficiency it takes anywhere from 900 to 4400 hours of immersion

>How long did it take you? Depends on the language and were you're coming from but to get C2 proficiency it takes anywhere from 900 to 4400 hours of immersion according to various sources. In my experience that's quite accurate.