Most commentaries see Dan 11:2-20 as a step by step description of rulers starting from Persia down to Seleucus IV Philopator (c. 187-176 BCE). Then, Dan 11:21-35 goes into extensive detail about Antiochus IV Epiphanes (175-164 BCE). Then Dan 11:36-45 is usually seen as some future mystery king (often explained as "the Antichrist").
If I remember correctly, the WT explains Dan 11:2-19 the same way commentaries do, with the exception that Seleucus IV and Antiochus IV are lumped into Dan 11:13-19. But from Dan 11:20-45 WT commentary begins to leap frog thru history, thru the 1st century and on down to modern times.