Answer:
As the Earth rotates, different parts of the planet receive sunlight or darkness, resulting in day and night. The sun rises as your location on Earth rotates into sunlight. Different time zones are required because different parts of the Earth enter and exit daylight at different times. The earth was divided into time zones to standardize the time in different parts of the world and to avoid confusion during long journeys. This was accomplished by establishing time zones that extended to 15 degrees of longitude.
Explanation:
