equator

This is when Sun is directly above Earth's equator resulting in almost equal time of the length of day and night.

Those changes will be harshest in tropical regions of Southeast Asia, South America and Africa that are close to the equator, the study says.

Cacao beans, the raw unprocessed ingredient used to make chocolate, can only grow in tropical regions that are 20 degrees north and south of the equator.

Its territory, which sits astride the equator, encompasses some of the most biodiverse tracts of the Congo Basin rainforest.

For countries on the equator, where daylight hours stay roughly the same throughout the year, daylight saving offers no real benefit.