The numbers in your link don’t add up. You should check them.
How so?
Table 1: Dates of biblical events from Creation Event/Person PassageTotal Time from Creation (years)
God created everything. Genesis 1–2 0 (4004 BC)
Adam became the father of Seth at 130. Genesis 5:3 0 + 130 = 130
Seth became the father of Enosh at 105. Genesis 5:6 130 + 105 = 235
Enosh became the father of Kenan at 90. Genesis 5:9 235 + 90 = 325
Cainan became the father of Mahalalel at 70. Genesis 5:12 325 + 70 = 395
Mahalalel became the father of Jared at 65. Genesis 5:15 395 + 65 = 460
Jared became the father of Enoch at 162. Genesis 5:18 460 + 162 = 622
Enoch became the father of Methuselah at 65. Genesis 5:21 622 + 65 = 687
Methuselah became the father of Lamech at 187. Genesis 5:25 687 + 187 = 874
Lamech became the father of Noah at 182. Genesis 5:28 874 + 182 = 1056
The Flood started when Noah was 600. Genesis 7:6 1056 + 600 = 1656
Calculated BC date for creation: 4004
Calculated AM date for the Flood: -1656
Calculated BC date for the Flood: 2348