4 years. My kids are fluent now because we threw them directly into Danish public school cold-turkey as it were. My wife has studied a bit and knows some. For m

4 years. My kids are fluent now because we threw them directly into Danish public school cold-turkey as it were. My wife has studied a bit and knows some. For my part, I've just been too busy with work to learn much Danish and 99% of work is in English across a few organizations I've been with while being here. And 100% of the people you meet in Copenhagen will speak English near fluently so it is not necessary for daily life. In fact, you are more likely to find restaurants where nobody speaks Danish in the city. All of this is different if you travel to rural areas of course. It only becomes a problem if you are in a social situation with a bunch of Danes because they'll want to socialize in Danish. In small groups it is fine, they'll switch to English for me, but a big group makes it harder.