Concept:Time zones exist because different parts of the Earth experience daylight and darkness at different times due to the planet’s rotation.
Explanation:The Earth rotates on its axis from west to east, completing one full rotation every 24 hours.
This rotation causes different longitudes to face the Sun at different moments.
As the Earth turns, one side receives sunlight while the opposite side remains in darkness.
Since the Sun cannot illuminate the entire Earth’s surface at the same instant, local time must differ from place to place.
To organise this natural difference, the world is divided into standard time zones based on longitude.
Therefore, countries do not share the same time simply because of the Earth’s rotation, not because of disagreement, identity, or weather and climate.
Answer:C. The Sun does not shine on the Earth’s surface at the same time.