Simulate one polling place on Election Day. Voters show up through the day, wait at check-in, the booths and the ballot scanner, and you see how long the line gets, who waits past 30 minutes, which station is the bottleneck, and when the line is shortest.
A planning toy, not official information. Each state sets its own polling hours and rules, and if you're in line when the polls close you can still vote. Find your polling place and hours at vote.gov.