The original idea seems to have been to oblige people to use less artificial lighting and so save fuel towards the war effort of World War I. Interesting that farmers were opposed to it in England:
I can't imagine that farmers would like the idea. Animals of my acquaintance can't tell time but maybe there are smart animals out there.
My animal doesn't care, he woke me up at 3:45 am the other day. I wasn't impressed because it was still dark outside.
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