…7 billion (2022) Time zone UTC+1 ( CET ) • Summer ( DST ) UTC+2 ( CEST ) Postal code(s) 42 postal codes Area code 02 ISO 3166 code BE-BRU GeoTLD .brussels HDI (2021) 0.953 [ 12 ] very high · 1st of 11 Website be.brussels Brussels , [ a ] officially the Brussels-Capital Region , […