I doubt that he said he rang Julie at 3am. In 1986, he probably thought that Nevill called him at 3:10am, so he would have said he rang Julie later, possibly 3:20am or the 3:25am time he gave in his statement.
His website was still using that 3:10am time until around 2003 (very approximately). After March 2004, both telephone logs were available for comparison, and so the emphasis changed completely, but the latest article still contains errors.