text: daylight hours in argentina and chile? since the summer season is approaching in south of the equator, is there a difference in sunrises/sunsets?   just like our summers have longer daylight hours, do theirs?  or do they see the same amount of sunlight as we do during these upcoming months? amount of daylight time is caused by the tilt of the earth's axis of rotation compared to its orbit around the sun.  in the summertime (either north or south hemisphere), the axis is pointed toward the sun, and in the wintertime it is pointed away from the sun.  the seasons are "opposite" between the hemispheres, because while the axis is pointed away from the sun in the north, it is pointed toward the sun in the south.  the longer daylight hours are what makes summer "summer".  yes, the southern hemisphere has longer daylight hours in their summer.