It typically takes a hen at least 25 hours to make an egg. So no, they do not. The world record for egg laying belongs to a Black Australorp which laid 364 eggs in 365 days. Typically hens stop laying eggs, or decrease egg production, over winter months. You can maximize egg production by using artificial lighting in your coop. You can trick your hens into thinking the sun is still rising earlier and setting later than it actually is.
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