World 1 · Day, Night & Shadows · 7 minHow long is a day?
Daylight depends on where you stand
Teaching this? Open projector mode
A day is 24 hours, but daylight is not. On the same date, a place near the equator and a place near the pole get very different amounts of it.
Look at the pin's circle of latitude on the globe: the yellow part is in sunlight, the blue part in darkness. As Earth spins the pin runs round that circle, so the yellow fraction is the day length.
Check yourself
On 21 June it is polar night near the South Pole. What is it near the North Pole?
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