Which Canadian invented standard time zones?

Question: Which Canadian invented standard time zones?

Answer options: ✅ Sandford Fleming

• Alexander Graham Bell
• Reginald Fessenden
• John Polanyi

Correct answer: Sandford Fleming

Explanation: Sir Sandford Fleming is the correct answer because he introduced the system of standard time zones in the late 19th century to resolve railroad scheduling issues. In contrast, Alexander Graham Bell invented the telephone, Reginald Fessenden pioneered radio voice transmission, and John Polanyi won a Nobel Prize in Chemistry. The underlying concept tested is the history of Canadian innovation, as detailed in the Discover Canada guide. For the citizenship exam, candidates should memorize the specific achievements associated with prominent Canadian scientists and inventors, as direct matching questions about these historical figures frequently appear on the test.