First Day Of Summer 2024 Canada Date And Time. This solstice falls between june 20. This year, the first day of summer, also known as the summer solstice, is thursday, june 20.
T his year, the summer solstice falls on thursday, june 20 at 4:50 p.m. Thursday, june 20 is the official first day of northern astronomical summer for 2024 โ summer solstice โ which is the longest day of the year for this half of the planet.