Does the Northern Hemisphere Use Daylight Saving Time?

About half of the world's population uses some form of daylight saving time. Most of us who use it are in the Northern Hemisphere where there are greater amounts of population crowded into short days and very cold winters. But many countries particularly near the equator that are clustered around the center of the globe don't use daylight saving time at all because day and night is equal number of hours almost throughout the year.