Twelve months — i.e., counting from the time of the vision. Sufficient time for repentance was mercifully granted to the king.
Palace of the kingdom of Babylon. — He had palaces in other towns. Daniel lays a stress upon the fact that this occurred in the town of Babylon. Nebuchadnezzar, the golden head of the image, was in the very centre of his dominions, in his own proud capital, when this occurred. It is needless, therefore, to assume that this was written by a person who lived a long way off from Babylon.