An anachronism is something that is out of its proper time; for example, if I were to write a novel in which (let us say) Abraham Lincoln sends out an e-mail, that would be an anachronism.
The use of clocks in Julius Caesar is an anachronism. Back in Roman times, there were no such things as clocks. But in Shakespeare's story, the characters used clocks. And the crowd of Italians with...
In order for there to be anachronisms in the play, there would have to be references which are inconsistent with the supposed setting of the play. However, the play is silent about what time period...