What is the chronological framework of modern times?

The modern era began with the beginning of bourgeois revolutions in the countries of Western Europe. The modern era begins approximately in the 17th and 18th centuries. For each country, a separate framework for the beginning of this period can be distinguished. And it ended with the outbreak of the First World War. The modern era is characterized by the fact that a lot of inventions happened, and an industrial revolution began. Some historians believe that the new era ended with the end of the Second World War, because only after that the order in the world finally came and a new era began.