Science Series: Summer Solstice

Science of the Summer Solstice

The Start of Summer

Bill Petro
4 min readJun 22, 2024

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Summer Solstice. Image: Wikipedia

Solstice comes from the Latin word solstitium, meaning “Sun, standing still.” The Summer Solstice occurs on June 20 at 20:51 UTC, Coordinated Universal Time, Zulu Time, or roughly Greenwich Mean Time. Greenwich, England, is the prime meridian — the zero point for longitude lines.

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Bill Petro

Writer, historian, technologist. Former Silicon Valley tech exec. Author of fascinating articles on history, tech, pop culture, & travel. https://billpetro.com