The polls in New York close at 9:00 pm. In most other states they close earlier, usually at 7 or 8.
Hawaiian polls close at 6pm.
They close at 7:30pm
8 pm
11:30pm
7 PM Mountain Time.
Polls in Kentucky are open from 6 AM to 6 PM local time. Note that for parts of Kentucky in the Central Time Zone the polls open and close an hour later than in the Eastern part of Kentucky.
The polls in Pearland, TX typically close at 7:00 PM on Election Day. It is important to verify the exact closing time with the local election office as it may vary.
In California, for the 2012 General Election on November 6nd, the polls open at 7:00 am and close at 8:00 pm.
For the 2010 general election, Ohio polls will be open from 6:30 am - 7:30 pm.
I think that they close at 5pm because that's the normal working day. I guess.
In Wisconsin, for the 2010 General Election on November 2nd, the polls open at 7:00 am and close at 8:00 pm.
Polls in Austin, TX typically close at 7:00 pm on election day. It's always a good idea to check with your local election office for the most up-to-date information.