Thanks so much for this reference.
The WTS uses this reference specifically to confirm the ancient historical reference to a global flood in various cultures, suggesting many ancient cultures had a common flood story in their history and are thus referring to the global flood of Noah's day. The chronology of the flood versus the chronology of the Gilgamesh tablets is totally up for grabs though. The obvious presumption is that it follows the actual flood. Those obviously dating it before the flood would be questioned.
From the WTS from Mankind's Search For God, chapter 3:
FloodandtheGod-ManGilgameshThe
11
Going back in history possibly some 4,000 years, we encounter the famous Akkadian myth called the Epic of Gilgamesh. Our knowledge of this is based mainly on a cuneiform text that came from the library of Ashurbanipal, who reigned 668-627 B.C.E., in ancient Nineveh.12
It is the story of the exploits of Gilgamesh, described as being two-thirds god and one-third man, or a demigod. One version of the epic states: "In Uruk he built walls, a great rampart, and the temple of blessed Eanna for the god of the firmament Anu, and for Ishtar the goddess of love . . . , our lady of love and war." (See box, page 45, for a listing of Assyro-Babylonian gods and goddesses.) However, Gilgamesh was not exactly a pleasant creature to have around. The inhabitants of Uruk complained to the gods: "His lust leaves no virgin to her lover, neither the warrior’s daughter nor the wife of the noble."13
What action did the gods take in response to the people’s protest? The goddess Aruru created Enkidu to be the human rival of Gilgamesh. However, instead of being enemies, they became close friends. In the course of the epic, Enkidu died. Shattered, Gilgamesh cried: "When I die, shall I not be like Enkidu? Woe has entered my belly. Fearing death, I roam over the steppe." He wanted the secret of immortality and set out to find Utnapishtim, the deluge survivor who had been given immortality with the gods.14
Gilgamesh eventually finds Utnapishtim, who tells him the story of the flood. As found in Epic tablet XI, known as the Flood Tablet, Utnapishtim recounts instructions given to him concerning the flood: "Tear down (this) house, build a ship! Give up possessions, seek thou life. . . . Aboard the ship take thou the seed of all living things." Does this not sound somewhat similar to the Bible’s reference to Noah and the Flood? But Utnapishtim cannot bestow immortality upon Gilgamesh. Gilgamesh, disappointed, returns home to Uruk. The account concludes with his death. The overall message of the epic is the sadness and frustration of death and the hereafter. Those ancient people did not find the God of truth and hope. However, the epic’s link to the Bible’s simple account of the pre-Flood era is quite evident. Now let us turn to the Flood account as it appears in other legends.JCanon