What is the longest day of the year and its relationship to the summer solstice?

<p style=";text-align:left;direction:ltr"> <strong>Weather of Arabia</strong> - the phenomenon of summer solstice begins in the northern hemisphere with one of the following dates 20-21 June 22nd of each year, <strong>so what is its relationship with the longest day and the shortest night of the year</strong> ? </p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>When does the summer solstice happen?</strong> </h2><p style=";text-align:left;direction:ltr"> The summer solstice occurs in the northern hemisphere on 20, 21 or June 22, when the sun is at its highest altitude at noon above the horizon. It is perpendicular to the orbit of the cancer, which is the latitude 3 and 23 degrees north of the equator. </p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> <a href="https://www.arabiaweather.com/ar/content/%D8%A8%D8%AA%D8%A7%D8%B1%D9%8A%... June 21, 2020 ... two important astronomical events taking place in the Arab region</a> </p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> <strong>The longest day of the year and the shortest night</strong> </h2><p style=";text-align:left;direction:ltr"> The summer solstice day is the longest day and the shortest night during the year, while the opposite is in the southern hemisphere (south of the equator), where winter begins there and is shorter during the day and longer at night </p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> On this day, summer begins in the northern hemisphere astronomically, and lasts for 95 days. </p>