Fast Facts in Oslo
Population: 553,396
Time Zone: UTC+1
Currency Name: Norwegian krone (NOK)
Major airport name (code) cities: Oslo Airport, Gardermoen (OSL)
Languages: Norwegian
Phone City Code(s):
Official Tourism Website: http://www.visitoslo.com/
High Travel Season: July - August
Voltage: 230 V - 50 Hz
Electrical Plug Type: c, f
Misc Fact / Good to Know: The city was named Christiana, then Kristiana, before becoming Oslo in 1925.