Those who live close to the Arctic Circle, where they have continual night or continual day for several months, should look to the closest city to them where night and day are distinct in each twenty-four hour period, then they should do the five daily prayers based on the timing in that city.

If someone greets you while you are praying, you may respond with a gesture. Suhayb said: "I passed by the Messenger of Allah while he was praying and I said Salam to him and he replied with a gesture."