New York Consolidated Laws, County Law - CNT § 206-a. Business in county offices on holidays and Saturdays

1. Notwithstanding the provisions of any general or special law, holidays and Saturdays shall be considered as Sunday for all purposes relating to the transaction of business in county offices in every county of the state, except in a county wholly contained within a city.  On all other days, except Sundays, such offices shall be kept open for the transaction of business.  For the purposes of this section, the term “county offices” shall mean all offices, the officers or employees of which are paid in whole or in part from county funds.

2. Whenever the last day on which any paper shall be filed or act done or performed in any such office expires on Saturday, Sunday, public holiday or a day when such office is closed for the transaction of business, the time therefor is hereby extended to and including the next business day such office is open for the transaction of business.

3. Notwithstanding the foregoing provisions of this section, the motor vehicle section of a county clerk's office may, by resolution of the board of supervisors, be kept open on Saturdays during the month of January.