| Geology | Anthropology | *BCT in Years | Span Years | Minutes & Sec | %/24Hrs | 24 Hr CLOCK | ||||||||||||||||||||
| Pre Camberian | Hadean | 4,500,000,000 | 3,800,000,000 | 700,000,000 | 224:00 | 16 | 0 | 0 | To | 3 | 44 | AM | ||||||||||||||
| Archaean | 3,800,000,000 | 2,500,000,000 | 1,300,000,000 | 416:00 | 29 | 3 | 44 | To | 10 | 40 | AM | |||||||||||||||
| Proterozoic | 2,500,000,000 | 543,000,000 | 1,957,000,000 | 626:15 | 43 | 10 | 40 | To | 9 | 06 | PM | |||||||||||||||
| Phanerozoic | Paleozoic | Cambrian | 543,000,000 | 490,000,000 | 53,000,000 | 16:57 | 1.2 | 9 | 06 | To | 9 | 23 | PM | |||||||||||||
| Ordovician | 490,000,000 | 443,000,000 | 47,000,000 | 15:04 | 1.0 | 9 | 23 | To | 9 | 38 | PM | |||||||||||||||
| Silurian | 443,000,000 | 417,000,000 | 26,000,000 | 8:19 | 0.6 | 9 | 38 | To | 9 | 46 | PM | |||||||||||||||
| Devonian | 417,000,000 | 354,000,000 | 63,000,000 | 20:10 | 1.4 | 9 | 46 | To | 10 | 06 | PM | |||||||||||||||
| Carboniferous | 354,000,000 | 290,000,000 | 64,000,000 | 20:28 | 1.4 | 10 | 6 | To | 10 | 26 | PM | |||||||||||||||
| Permian | 290,000,000 | 248,000,000 | 42,000,000 | 13:26 | 0.9 | 10 | 26 | To | 10 | 40 | PM | |||||||||||||||
| Mesozoic | Triassic | 248,000,000 | 206,000,000 | 42,000,000 | 13:26 | 0.9 | 10 | 40 | To | 10 | 53 | PM | ||||||||||||||
| Jurassic | 206,000,000 | 144,000,000 | 62,000,000 | 19:51 | 1.4 | 10 | 53 | To | 11 | 13 | PM | |||||||||||||||
| Cretaceous | 144,000,000 | 65,000,000 | 79,000,000 | 25:17 | 1.8 | 10 | 13 | To | 11 | 38 | PM | |||||||||||||||
| Cenozoic | Paleogene | Paleocene | 65,000,000 | 54,000,000 | 11,000,000 | 3:32 | 0.3 | 11 | 38 | To | 11 | 42 | PM | |||||||||||||
| Eocene | 54,000,000 | 38,000,000 | 16,000,000 | 5:07 | 0.4 | 11 | 42 | To | 11 | 47 | PM | |||||||||||||||
| Oligocene | 38,000,000 | 24,000,000 | 14,000,000 | 4:29 | 0.3 | 11 | 47 | To | 11 | 51 | PM | |||||||||||||||
| Miocene | 24,000,000 | 5,000,000 | 19,000,000 | 6:05 | 0.4 | 11 | 51 | To | 11 | 57 | PM | |||||||||||||||
| Pliocene | 5,000,000 | 2,000,000 | 3,000,000 | 0:58 | 0.1 | 11 | 57 | To | 11 | 59 | PM | |||||||||||||||
| Lower | 2,000,000 | 1,800,000 | 200,000 | 0:06 | 0.0 | 11 | 59 | To | 11 | 59:25 | PM | |||||||||||||||
| Neogene | Pleistocene | 1,800,000 | 200,000 | 1,600,000 | 0:00.31 | 0.0 | 11 | 59:25 | To | 11 | 59:56 | PM | ||||||||||||||
| Middle | 200,000 | 40,000 | 160,000 | 0:00.07 | 0.0 | 11 | 59:56 | To | 11 | 59:59.23 | PM | |||||||||||||||
| Paleolithic, | 40,000 | 12,000 | 28,000 | 0:00.05 | 0.0 | 11 | 59:59.23 | To | 11 | 59:59.77 | PM | |||||||||||||||
| Holocene | Upper | Stone | 12,000 | 5,000 | 7,000 | 0:000.01.3 | 0.0 | 11 | 59:59.77 | To | 11 | 59:59.90 | PM | |||||||||||||
| Mesolithic | Bronze | 5,000 | 3,000 | 2,000 | 0:000.00.4 | 0.0 | 11 | 59:59.90 | To | 11 | 59:59.94 | PM | ||||||||||||||
| Iron | 3,000 | 0 | 3,000 | 0:000.00.6 | 0.0 | 11 | 59:59.94 | To | 12 | 00 | MN | |||||||||||||||
| 2016 | ||||||||||||||||||||||||||
| :Seconds + | ||||||||||||||||||||||||||
| *BCT= Before Current Time | Primates | 100th of a Seconds | ||||||||||||||||||||||||
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