When was the first sundial clock made?

Well, no one actually knows when it was invented, unless you were there, which is impossible your still alive. But, we do know this: it was made by the Mesopotamians, most likely the Babylonians. And also, it was in B.C. (before Chirst, if you didn't know).

Also try to ask your socail studies teacher, she may most likely know the answer, because the internet has all different answers and which one is really correct?