The Resistance Museum is certainly worth a visit. Probably a fairly quick study. We found that an hour is ample. The jewels at Rosenborg are eye candy, of course. Too bad you won't have time to go out to Louisiana..remarkable venue on the sound separating Sweden from Denmark..modern art...location, location, location. Quick and easy train ride from Norreport...hope you can do it.
stu

I would visit Glyptoteke and Thorvaldsen museum (neoclassicistic sculptor who created monumental sculptures of historical and ancient figures).

Thanks, Stu and Valtor.

I might have time for an evening ride out of the city just to have a stroll and dinner, but not a daytime visit to a museum outside of the city this time (modern art is not my favorite anyway).

I didn't have the Thorvaldsen on my list, but will read about it again.

I would go for Rosenborg and the national museum. Resistance museum is also great. also try to have a look at the rpyal palace and the changing of the guard.

Is Tivoli closed when you arrive? - or that would be by far the best night activity.

Tivoli.

The resistance museum is the size of a small house. An hour tops.

The national museum is, frankly, just another museum. No 'name' works and nothing that compelling to recommend it over any other big city museum.

The glyptotek and Thorvaldsen are focused collections which offer a different experience from the national museum. I would consider one or both of these.

Personally, I'd stick to Rosenborg, add back the canal tour, walk the Strøget, grab a nice lunch somewhere, check out the marble church, maybe see Christiania and skip most of the museums, unless the weather sucks.

For dinner, avoid the restaurants along Nyhavn. I'd recommend either Nimb brasserie at Tivoli or Kofoed off Store Kongensgade.