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Earth's Sunlit Moment: 99% Worldwide Day on July 8
8 Jul
Summary
- 99% of the world population experiences daylight or twilight on July 8.
- Nearly 7 billion people are in full daylight at this specific moment.
- This phenomenon occurs for about 60 days around the Northern Hemisphere summer.

On July 8, a remarkable astronomical event will occur, with approximately 99% of the global population experiencing daylight or twilight simultaneously. Around 11:10 GMT, nearly all of humanity will be under the sun, with only a small fraction in darkness.
This means vast continents like North America, South America, Europe, Africa, and most of Asia will be bathed in light. Conversely, Australia, New Zealand, parts of Southeast Asia, and Antarctica will be in darkness. This phenomenon, lasting for about a minute, is not limited to July 8 but happens daily for roughly two months each year, from mid-May to mid-July.
At the peak of this event, an estimated 6.9 billion people will be in full daylight, while another 581 million will experience civil twilight, sufficient for outdoor activities. A smaller segment will be in nautical or astronomical twilight, with only 83 million people experiencing complete darkness. The July 8 date is particularly notable because, after the June solstice, the Sun's slight southward shift extends daylight into densely populated areas, increasing the number of people in daylight compared to the solstice itself.