New Delhi, June 18 -- The Summer Solstice 2025 in the Northern Hemisphere will occur on Friday, June 20, 2025, at 10:42 PM EDT (0242 GMT on June 21). This astronomical event marks the start of summer and the longest day of the year in terms of daylight hours.

The summer solstice happens when Earth's North Pole is tilted closest to the Sun, causing the Sun to appear at its highest point in the sky. As a result, regions in the Northern Hemisphere enjoy extended daylight, early sunrises, and late sunsets.

Derived from the Latin solstitium ("sun stands still"), the word "solstice" refers to the point at which the Sun's apparent motion in the sky pauses before reversing direction. Ancient civilizations, such as those who built Stonehenge, mo...