43 years.
Nebuchadnezzar l King of the Babylonian Empire 1125 BC - 1103 BC Nebuchadnezzar ll ruled Babylon 605 BC - 562 BC
The Hanging Gardens, built by Nebuchadnezzar II.
The question seems to refer to the same gardens as the hanging gardens of Babylon. (c 634 -- 562 BC) He was a ruler of Babylon in the Chaldean Dynasty, who reigned c. 605 BC -- 562 BC. The answer would then seem to easy: Babylon which is 25 kilometers from modern day Baghdad in Iraq.
Nebuchadnezzar II was king of the Neo-Babylonian Empire, who reigned c. 605 BC - 562 BC. In modern day terms his country was Iraq and his capital was Baghdad.
The Babylonian priest Berossus, writing in about 290 BC and quoted later by Josephus, attributed the gardens to the Neo-Babylonian king Nebuchadnezzar II, who ruled between 605 and 562 BC.
Babylonian king Nebuchadnezzar II (c. 634-562 BC) was 71 or 72 when he died. When he died his empire (Babylonia) failed.
Dynasty XI of Babylon (Neo-Babylonian or Chaldean)Nabu-apla-usur (Nabopolassar) 626 - 605 BCNabu-kudurri-usur (Nebuchadnezzar) II 605 - 562 BCAmel-Marduk 562 - 560 BCNergal-šar-usur (Nergal-sharezer) 560 - 556 BCLabaši-Marduk 556 BCNabu-na'id (Nabonidus) 556 - 539 BC
605 BCE
605BC as 605BC is 2617 years ago.
Nebuchadnezzar II, was a king of the Neo-Bablyonian Empire from 605 BC - 562 BC. He is featured in the old testament book of Daniel. He is commonly known for the destruction of the temple in Jerusalem and building the construction of the Hanging Gardens of Babylon (although he may not have done either).
"Third year of the reign of Jehoakim, king of Judah". Daniel 1:1
The famous king of this name was actually Nebuchanezzar II. He died 562 BC.