Q3: Identify the populous nation that enforces one official time from its deserts to its eastern seaboard despite spanning multiple solar time bands.​

• Hint: Travelers notice that sunset can arrive unusually early or late relative to the clock depending on longitude, but railways, markets, and media remain synchronized nationwide.​
  This “single‑clock” design is a governance choice rather than a cartographic inevitability, contrasting sharply with neighbors that divide their territory into multiple legal hours.​
  The policy simplifies scheduling but produces timekeeping quirks near far‑western and far‑eastern frontiers where solar noon diverges notably from the official hour.​