Does The 2024 Summer Solstice Fall On June 21. Today (june 20) the summer solstice — the longest day of the year in the northern hemisphere — will begin, and it will be the earliest solstice in 228 years. Read below to find out.

When will the sun set on june 21? Summer solstice, the two moments during the year when the path of the sun in the sky is farthest north in the northern hemisphere (june 20 or 21) or farthest south.