at exactly 11:54 am https://www.timeanddate.com/calendar/summer-solstice.html Summer Solstice at exactly 11:54 am Tuesday, June 20, 2017 at 10:24 pm MDT at exactly 11:54 am Check your time zone https://www.timeanddate.com/calendar/summer-solstice.html Summer Solstice summer solstice summer solstice June Solstice or SUMMER summer solstice Summer Solstice summer solstice Summer Solstice Tuesday, June 20, 2017 at 10:24 pm MDT summer solstice information summer solstice summer solstice summer solstice in Australia in 2015 Tuesday, June 20, 2017 at 10:24 pm MDT June Solstice or SUMMER at exactly 11:54 am either side of the equator, exactly 11:54 a.m. Eastern time Source summer solstice summer solstice