Come up with a question and reasoning that would justify this answer: April 30 , 1916
The question is: 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.

Answer this question based on the passage: when did daylight savings time first come into effect?
Step-by-step reasoning process: 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.