:Unfortunately, the software does not do it. Massive overlinking of dates throughout Wikipedia has meant that readers have no way of knowing which of the many links on a page contain useful information. If it is not possible for a reader to discriminate, it is difficult to define rules for software. 

 :I do not agree that the 1117 link is useful but you have suggested a clear rule. I think that you are proposing a rule that is clear: 
 :1. Look at ArticleA 
 :2. Look inside the article for year link e.g. ArticleB, ArticleC etc 
 :3. Go to ArticleB and looks at 'What links here' 
 :4. Check if 'What links here' of ArticleB contains ArticleA 
 :5. Use that information to modify the delinking rule. 

 :I do not know how to do it. The date delinking regex is published in the talk page so you can see what it does. Feel free to suggest modifications. Thanks.