 The westernmost point in Norway proper is on 4°30′E longitude, meaning 42 minutes difference between mean solar time and official time, while the easternmost point in Norway proper is on 31°10′E longitude, meaning 64 minutes difference between mean solar time and official time.The difference between those points is 26°41′ or 1 hour 46 minutes.The 15° E meridian passes Norway in the northern part of the country, from north over Vesterålen and Lofoten islands, then Vestfjorden and finally Salten and Saltfjellet, a total distance of about 320 km.