June 20 (UPI) -- Summer officially began Friday in the Northern Hemisphere with the longest daylight of the year at around 15 hours.
At Times Square in New York, thousands of people enjoyed the extra sunshine in all-day yoga classes.
The summer solstice officially begins at 10:42 p.m.
The amount of daylight depends on the location. And the sun's intensity also varies.
Long day? The Earth might have something to do with it.










