Winter Solstice 2025: Timing And Meaning Of The Darkest Day
• The winter solstice 2025 occurs on December 21st, marking astronomical winter's start.
• It's the shortest day and longest night due to Earth's tilt away from the sun.
• After the solstice, daylight gradually increases until the summer solstice in 2026.
Winter solstice marks astronomical winter's start
The winter solstice in 2025 will occur on Sunday, December 21, at 10:03 a.m. EST, heralding the official commencement of astronomical winter in the Northern Hemisphere. This day marks the year's shortest daylight period and longest night, a phenomenon resulting from Earth's axis reaching its maximum tilt away from the sun. On this date, the sun will be directly overhead at the Tropic of Capricorn.
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