Final answer:
Canada was the first country to change back the clocks in 1908.
Step-by-step explanation:
The first country to change back the clocks in 1908 was Canada. Canada introduced daylight saving time in 1908 in the city of Port Arthur, Ontario. This change prompted other Canadian cities and provinces to adopt the practice, and eventually, it spread to other countries in the world.
Learn more about Daylight saving time