Replying to Science NS'ers

So I was bored in class today so I was looking around and saw this mirror and though "Do mirrors reflect in exact time?" By that I mean if you were about five feet away from a mirror and move so it reflects in the mirror, does that happen at the exact time you move. I thought and remembered that it would be the light traveling to mirror creating the reflection so there would be a small difference in your movement and the reflection but at least that's what I think. So just help me out here because I'm hella confused.