When Noah got off his arc with his family and animals he built an alter and worshipped GOD MOST HIGH and God told Noah this promise,
 While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.
Once GOD MOST HIGH speaks something like this it becomes as Law, and can never change, because once God speaks a thing, it will be that way.
This is why it is so important in these days to know and understand what God has said about our coming dimensional changeover and the appearance of the Anti-Christ/Satan upon our generation, because he has told us everything we should know about how and why and when it comes to pass.
We do not have to guess about it, as he has clearly spoke it to us. Once he speaks it, it happens, every time.