False Endtime Predictions for 2017

Some predict that the end of the world will occur on August 21 or September 23 of 2107, based on a solar eclipse and a heavenly image which supposedly mirrors a description of the woman in Revelation 12.  Is there any credibility to this idea? What does Christ tell us about the end of the world, and especially about the great tribulation and the heavenly signs? How do His statements correspond with current news events and developments?