1st Day of Summer

 On the first day of summer—the summer solstice—we enjoy the most daylight of the calendar year. The Sun reaches its most northern point in the sky at local noon. After this date, the days start getting "shorter," i.e., the length of daylight starts to decrease

The astronomical beginning of summer in the Northern Hemisphere is marked by the June solstice. Depending on the year, the day that marks the offical start of summer can be June 20 or June 21. The following is a list of exact dates and times for upcoming summer solstices:

• Year	Summer begins on ...
  2011	June 21
  2012	June 20
  2013	June 21
  2014	June 21
  2015	June 21
  2016	June 20
  2017	June 21