How long did it take for the Temple to be built as in Ezra 6?

The temple was started by Zerubbabel in about B.C.537. The alter was build at that time so that sacrifices could begin. But then some trouble arose from outsiders and work was stopped. It was resumed later and semi-finished in B.C. 516. The temple was never as complete as Solomons temple and it wasn't until the time of Herod the Great (20 or 21 B.C.) that a great construction began to almost completely redo the temple.