Red timer and que timer on screen dont match.

i dont have a screenshot but a few times ive had a timer and had to wait extra because of some unknown reason, but the red timer wasnt matching up with my que timer on the window that pops up when you get in a que and wait for it. I dont know if this is related to it but when i wait for a timer i move the actual window off the screen,and when i come bad the timer on the window say 19:?? or something but the red number is like 14:??.