The conversation between human and AI assistant.
[|Human|] Based on the following passage summarise how sunsets are viewed from the northern hemisphere across seasons.
[|AI|] When viewed from the Northern Hemisphere, the Sun sets to the northwest (or not at all) in the spring and summer, and to the southwest in the autumn and winter; these seasons are reversed for the Southern Hemisphere.
[|Human|] 
Based on the following passage summarise how sunsets are viewed from the northern hemisphere across seasons.