Election Day is a state holiday in New York, resulting in the closure of state and local government buildings.
Although government offices are closed, the Long Island Rail Road and mass transit will operate on a normal schedule.
According to the Time Off to Vote Notice (New York State Election Law Section 3-110), employees can take up to two hours off without loss of pay to vote if they don't have time to attend the polls during their shift.
The first Tuesday in November is recognized as a holiday in New York State, although it's not a federal holiday.
Author's summary: Election Day closures in NY.