Universal Clock: If the universe began 24 hours ago

12 midnight           15, 000,000,000 years ago       Big Bang

4.8 pm                   4,500,000,000 years ago          earth formed

5.6 pm                   4,000,000,000 years ago          life begins (prokaryotes)

9.6 pm                    1,500,000,000 years ago         eukaryotes appear

10.88 pm                700,000,000 years ago            multicellular organisms appear

11.136 pm              540,000,000 years ago            Cambrian explosion in seas

11.36 pm                400,000,000 years ago            insects appear on land

11.632 pm              230,000,000 years ago            first dinosaurs appear

11.664 pm              210,000,000 years ago            first mammals appear

11.792 pm              130,000,000 years ago            flowering plants appear

11.896 pm               65,000,000 years ago            dinosaurs (& 90% of all species) wiped out after meteorite

11.9936 pm             4,000,000 years ago              hominids appear

1 sec. ago                 173,600 years ago

11.99984 pm            100,000 years ago               modern homo sapiens appear

11999984 pm           10,000 years ago                 neolithic cultures appear

11.999992 pm           5000 years ago                   civilizations appear

11.999996 pm           2500 years ago                   time of Confucius, Buddha, Cyrus, Pericles, Mahavira, Pythagoras

11.999999 pm           500 years ago                    European voyages of exploration and conquest begin

11:9999997 pm         137 years ago                    slavery ended in US

11.9999999 pm          18 years ago                      2004 HS graduate born

12 midnight                0 years ago                        today
 
 

Earth Clock: If the earth began 24 hours ago

12 midnight                 4,500,000,000 years ago                 earth formed

2.67 am                        4,000,000,000 years ago                 life begins (prokaryotes)

4 pm                            1,500,000,000 years ago                 eukaryotes appear

8.27 pm                        700,000,000 years ago                   multicellular organisms appear

9.12 pm                       540,000,000 years ago                   Cambrian explosion in seas

9:867 pm                    400,000,000 years ago                     insects appear on land

10.77 pm                    230,000,000 years ago                     first dinosaurs appear

10.88 pm                    210,000,000 years ago                     first mammals appear

11.31 pm                    130,000,000 years ago                     flowering plants appear

11.65 pm                    65,000,000 years ago                      dinosaurs (& 90% of all species) wiped out after meteorite

11.787 pm                  4,000,000 years ago                        hominids appear

11.945 pm                  100,000 years ago                           modern homo sapiens appear

one sec. ago                52,083 years ago

11.995 pm                 10,000 years ago                              neolithic cultures appear

11.997 pm                 5000 years ago                                 civilizations appear

11.9987 pm               2500 years ago                                 time of Confucius, Buddha, Cyrus, Pericles, Mahavira, Pythagoras

11.9997 pm                500 years ago                                 European voyages of exploration and conquest begin

11.99993 pm              135 years ago                                 slavery ended in US

11.99999 pm              18 years ago                                    2004 HS graduate born

12 midnight                0 years ago                                       today