Every relevant field of science indicates that anatomically modern humans have existed for about 2-3 hundred thousand years.
Aside from that, based on the stories in the Bible, Adam was created in either 3955 BCE or 4168 BCE (the discrepancy between the first option and the year asserted by Jehovah's Witnesses is a result of their misrepresentation of Babylon's '70 years'; for more information, see here). Which of those two years is chosen depends on whether it is claimed that the Israelites were 'enslaved in Egypt' when the descendants of Jacob - aka Israel - were supposedly made slaves after living in
Egypt for some time (which never actually happened, and the
lifespans indicated do not provide enough time) or when 'Ishmael made fun of Isaac' (as JWs and various other groups do even though it is asinine because the story depicts a brief incident when Israelites didn't even exist yet).