Question: what is the official name of the country sometimes known as holland
Answer: Holland North and South Holland ( in orange ) shown together within the Netherlands Country Netherlands Largest settlements List ( show ) Amsterdam Rotterdam The Hague Haarlem Zoetermeer Dordrecht Leiden Area Total 5,488 km ( 2,119 sq mi ) Population ( January 2017 ) Total 6,466,735 Density 1,200 / km ( 3,100 / sq mi ) Demonym ( s ) Hollander Time zone CET ( UTC + 1 ) Summer ( DST ) CEST ( UTC + 2 )