A timezone is a region of the Earth that has the same standard time. The world is divided into 24 timezones, each typically one hour apart, allowing for a coordinated way to measure time across different areas. Timezones are based on the position of the Earth relative to the Sun, with noon occurring when the sun is highest in the sky. Timezones can be affected by factors such as Daylight Saving Time, where clocks are adjusted forward or backward to make better use of daylight. This system helps synchronize activities like work and travel across different regions, ensuring that people can communicate and plan effectively.