If you don't have any saved games, there are three defaults: The warden lived, Alistair took the throne. The dalish warden died, Alistair and Anora took the throne. The dwarven noble killed Alistair, had Loghain sacrifice himself, and Anora has the throne.
(this is from memory, so it might not be completely right.)
Anyway, Kirkwall is a selection of 6-7 maps, and you can go to a map at day or in the night. You select the time at the world level. They're saying it's comparable to Athklatla.