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?

States the general rule that countries with large east–west (longitudinal) extent have multiple time zones (example: Russia 11, Canada/USA multiple).

A student could compare the UK’s relatively small longitudinal span on a world map to these examples to judge whether multiple time zones are likely.

Gives concrete country examples (Canada and the USA have multiple time zones) illustrating the pattern that wide countries use several zones.

Use the UK’s geographic width vs. Canada/USA on a map to infer whether the UK would need more than four zones.

Explains that governments may set standard time based on central meridian and adjust for administrative reasons, implying time zones are chosen, not automatic.

A student could note the UK government could adopt multiple zones if needed, so they should check whether any overseas territories use different standard times.

Notes that time zone boundaries often follow international borders and are irregular rather than strictly by longitude.

A student could examine the UK and its overseas territories’ locations relative to GMT and international borders to see if they span multiple zones.

Reiterates that very large countries (Russia, Canada, USA) span many zones and gives the intuitive idea that zone count increases with east–west size.

Compare the UK’s size and global distribution (including overseas territories) on a world map to these large-country examples to assess plausibility of >4 zones.

Gives the general rule that countries with large east–west extent have multiple time zones (examples: Russia, Canada, USA).

A student could compare Denmark's longitudinal spread (including any dependent territories) on a world map to see if it spans multiple 15° zones.

Explains that large countries require several time adjustments across long rail journeys and lists examples with multiple zones (Canada, USA).

Use the example pattern (wide countries have many zones) and check whether Denmark or its territories are similarly spread longitudinally.

States explicitly that some countries have more than one standard meridian because of vast east–west extent (gives USA as example).

Determine whether Denmark's main territory plus any overseas parts cover enough longitude to require multiple standard meridians/time zones.

Defines time zones as 15° longitude bands centered on meridians — a measurable rule for counting potential zones.

Measure Denmark's extreme longitudes (including any territories) and divide the span by 15° to estimate minimum number of time zones possibly involved.

Notes that time zone boundaries follow political borders and are not perfectly straight, so administrative choices affect zone count.

After mapping longitudes, check political/administrative time-zone choices (e.g., whether territories adopt different standard times) rather than relying only on geographic span.

States the general rule: countries with large east–west (longitudinal) extent tend to have multiple time zones and gives examples (Russia, Canada, USA).

A student can check Brazil's east–west longitudinal span on a world map and divide by 15° per time zone (or count standard meridians) to estimate how many zones it might need.

Explains the 15°-wide zone concept (each colour is a zone of 15° centred on a meridian), providing a concrete method to convert longitude span into number of time zones.

Measure Brazil's longitudinal range and divide by 15° (rounding as appropriate) to infer the likely number of time zones.

Gives examples of how large countries require multiple adjustments (Canada/USA multiple zones) illustrating that multiple zones are common for wide countries.

Compare Brazil's geographic width to those examples (using a map) to judge whether Brazil is similarly wide enough to have more than four zones.

Notes time zone boundaries often follow political borders and are not strictly straight, implying a country's administrative choices affect its number of zones.

A student should account for political/administrative decisions (not just pure longitude) when counting Brazil's official time zones from a map or legal sources.

Explains governments may change standard time for administrative reasons (example: Malaysia), indicating the official count of time zones can be altered by policy.

After estimating zones from longitude, verify whether Brazil's government has adjusted official zones (e.g., by consulting maps or legal time-zone designations).