In perspective, with Earth being 4,500,000,000 years old and humans being around 1,400,000 years; how long out of a 24 day time period have we as humans been here.

Day time period have we as humans been here: 26 seconds

Explanation:

4,500,000,000 years = 1 day

1,400,000 years = X

X = 0.0003111

1 day = 86,400 seconds

0.0003111 = X

X = 26 seconds

In term of the Earth in 24-hour clock, Homo sapiens appeared on our planet only in the last 26 seconds, it means that in geologic time, humans have existed for only a brief time period and thereby it is a relatively new species.