Consider the following countries: I. United Kingdom II. Denmark III. New Zealand IV. Australia V. Brazil. How many of the above countries have more than four time zones (Time Zones)?

Only three

Countries with overseas territories often span more than four time zones. Among the listed countries, the UK, France-linked territories aside, and notably Australia, and other countries with distant island territories have multiple time zones; based on the credited answer, three of these five countries (typically UK, Australia, and Denmark, given their overseas territories) have more than four time zones, while New Zealand and Brazil (with fewer or more consolidated zones) do not.