Explore the Numbers
Behind Everything

While traditionally there were four named oceans, modern geography now recognizes five distinct ocean basins that cover about 71% of Earth's surface.

The number of hours in a year varies depending on the type of year. A standard calendar (common) year has 8,760 hours, a leap year has 8,784 hours, and astronomical years like the tropical or sidereal year have slightly different lengths, resulting in different hour counts.

While traditionally there were four named oceans, modern geography now recognizes five distinct ocean basins that cover about 71% of Earth's surface.

The number of hours in a year varies depending on the type of year. A standard calendar (common) year has 8,760 hours, a leap year has 8,784 hours, and astronomical years like the tropical or sidereal year have slightly different lengths, resulting in different hour counts.