the lord of the rings - How did Thranduil know about the 'infamous' Strider when the latter was only 10 during the Battle of the Five Armies?

On the last Hobbit movie, after the Battle of the Five Armies, Legolas tells Thranduil that he won't be coming home. The latter tells him to go to find the infamous son of Arathorn, that goes by the name of Strider.

But, the Battle of the Five Armies was fought on T.A. 2941 and Aragorn was only born on T.A. 2931. Aragorn did not leave Rivendell until 20 years old.

How could Aragorn be such an infamous rogue in the age of only ten and still in Rivendell??

Sources: Aragorn, Battle of Five Armies and History of Middle Earth Timeline.

Answer

The Jackson movies are operating on a different timeline to the books.

Some examples:

• The White Council don't know about Sauron's return until the time of the Hobbit movies.


• Mirkwood not becoming corrupted until the time of the Hobbit movies.


• The condensed timescale between Bilbo's birthday party and Frodo's leaving of Bag End.

What is certain is that at least 60 years pass between the Hobbit movies and the LotR movies, per Gandalf's words (source):

For sixty years the ring lay quiet in Bilbo's keeping, prolonging his life, delaying old age...

Given in particular the condensed timescale in my third example, it's likely that not much more than 60 years pass, so therefore - and in movie-canon - Aragorn wouldn't have been 10; he would have been about 27/28.