The Summer Solstice 2024 Calendar. Thursday, june 20 is the official first day of northern astronomical summer for 2024 — summer solstice — which is the longest day of the year for this half of the planet. This is the longest day of the year and marks the start of summer in the northern hemisphere.
Here are the equinox and solstice dates—plus, answers to common questions about the. This page provides date and local time for summer solstice in the year 2024 for boydton, virginia, united states.