Texas requires employers to give off 2 paid hours to vote, unless you are off for 2 consecutive hours while polls are open (ie polls open 7am-7pm, you get off work at 5, or go in at 9, they don't have to give you time off).Just so you know, and presuming you're in Illinois, they have to do this. Well, it may not be ~4 hours, but state law requires them to give you some amount of (paid) time to vote.
I work election day (7a-7p), and working in an ER, it is not kind to other workers to take off to go vote, so I just voted early (and did not want to mess with the crowds on election day).