How many degrees of longitude correspond to approximately one hour of time?

One hour of time corresponds to approximately 15 degrees of longitude. This is based on the Earth's rotation and the division of time zones. The Earth rotates 360 degrees in about 24 hours; when you divide 360 degrees by 24 hours, you get 15 degrees per hour. This means that for every hour you travel across the Earth's surface from one longitude to another, you effectively move 15 degrees east or west. This relationship is fundamental for understanding global time zones and how they are structured. Knowing that each time zone typically covers 15 degrees of longitude helps clarify how we measure and coordinate time on a global scale.