Summer Solstice 2017: The maximum amount of sunlight received by the Northern Hemisphere during this time is usually on June 20, 21 or 22. Summer Solstice 2017: The maximum amount of sunlight received by the Northern Hemisphere during this time is usually on June 20, 21 or 22. That is called the summer solstice. In technical terms, this day is referred as the summer solstice, the longest day of the summer season. The further north one moves from the equator, the more light one receives during the summer solstice.

Source: Indian Express June 20, 2017 16:30 UTC