George Hudson proposed the idea of daylight saving in 1895. The German Empire and Austria-Hungary organized the first nationwide implementation, starting on April 30, 1916. Many countries have used it at various times since then, particularly since the energy crisis of the 1970s.\n\nAnswer this question based on the passage: when did daylight savings time first come into effect?
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To answer the above question, the relevant sentence is: The German Empire and Austria-Hungary organized the first nationwide implementation, starting on April 30, 1916.
So, the answer is April 30 , 1916.
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