A time zone is a region of the Earth that has the same standard time. The world is divided into 24 time zones, each typically one hour apart. This system helps people coordinate activities, such as work and travel, across different areas. For example, when it is noon in the Eastern Time Zone, it is 9 AM in the Pacific Time Zone. Time zones are important for global communication and scheduling. They account for the Earth's rotation and the position of the sun. Some regions also observe Daylight Saving Time, adjusting their clocks forward or backward to make better use of daylight during certain months.