Summer-house and winter-house
In Amos 3:15, this signifies the sensuous things of the natural man. (Apocalypse Explained 1146[3])
Arcana Coelestia #1859
1859. That 'the sun went down' means the final period when the close came is clear from what has been stated above at verse 12 about the sun going down and about what that means, namely the final period of the Church.