What is the time limit for the Legislative, Executive, and Judicial branches?

The President is has a term limit of 2 terms, each term consisting of 4 years (if one serves more than 2 years, it is their term). The Legislative branch has a 2 year and a 6 year term, but they are unlimited in how many terms they can serve. The Judicial branch only has a lifetime term (although one could resign prematurely), so term limits don't make since.