Call: (631) 854-5579
Calling Hours: Mon-Fri 9am-4pm
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Museum Hours & Admission

Historic Mansion on Long Island

Seasonal Museum Hours

(Museum administrative office hours: Mon. – Friday 10 a.m. to 4 p.m., closed weekends & holidays)
Closed on Labor Day

Summer (June 24 –September 2, 2019)

Sunday12:00 pm - 5:00 pm
Monday11:00 am - 5:00 pm
Tuesday11:00 am - 5:00 pm
Wednesday11:00 am - 5:00 pm
Thursday11:00 am - 5:00 pm
Friday11:00 am - 5:00 pm
Saturday11:00 am - 5:00 pm
  • Closed Thursday, July 4
  • Closed Monday, Labor Day, September 2
  • Winter - Spring (November 5, 2018  - June 23, 2019)

    Sunday12:00 pm - 4:00 pm
    MondayClosed
    Tuesday12:00 pm - 4:00 pm
    WednesdayClosed
    ThursdayClosed
    FridayClosed
    Saturday12:00 pm - 4:00 pm
  • Open Monday, November 12 (Veterans Day weekend)
  • Open Friday, November 23 (day after Thanksgiving)
  • Open December 26 – 30 (School Vacation)
  • Open Monday, January 21, 2019  (Martin Luther King Jr. Day)
  • Open School Winter Vacation: Monday, February 18 – Friday,
    February 22, 2019
  • Open School Spring Vacation: Monday, April 22 – Friday, April 26, 2019
  • Fall (September 4 – November 4, 2018)

    Sunday12:00 pm - 5:00 pm
    MondayClosed
    Tuesday12:00 pm - 5:00 pm
    WednesdayClosed
    ThursdayClosed
    Friday12:00 pm - 5:00 pm
    Saturday12:00 pm - 5:00 pm
    • Open, Monday, October 8, 2018 (Columbus Day)

    Holiday Closures

    • New Year’s Eve
    • New Year’s Day
    • Easter Sunday
    • Memorial Day
    • July 4th
    • Labor Day
    • Thanksgiving Day
    • Christmas Eve
    • Christmas Day
    Blue Start Museum
    IPS

    Present your Bank of America®, Merrill Lynch® or U.S. Trust® credit or debit card and a photo ID on the first full weekend of every month for one free general admission.

    Free general admission is limited to the cardholder at participating institution. Museum hours and participation varies. Excludes special exhibitions, ticketed shows and tours and fundraising events. Not to be combined with other offers.

    See admission prices for Bank of America Cardholders here.

    General Admission - NO Show or Tour

    Includes access to the Estate grounds, 3 Museum wings in the Mansion and the Marine Museum

    • Adult: $8
    • Senior/Student (age 62-plus, or student ID): $7
    • Children age 12 and under: $5
    • Children age 2 and under: FREE (Please let us know if you have a child that qualifies.)

    Planetarium show or Mansion tour

    Weekdays

    • Adult: $14
    • Senior/Student (age 62-plus, or student ID): $13
    • Children age 12 and under: $11
    • Children age 2 and under: FREE (Please let us know if you have a child that qualifies.)

    Weekends

    • Adult: $18
    • Senior/Student (age 62-plus, or student ID): $17
    • Children age 12 and under: $15
    • Children age 2 and under: FREE (Please let us know if you have a child that qualifies.)

    Planetarium show and Mansion tour

    Weekdays

    • Adult: $20
    • Senior/Student (age 62-plus, or student ID): $19
    • Children age 12 and under: $17
    • Children age 2 and under: FREE (Please let us know if you have a child that qualifies.)

    Weekends

    • Adult: $24
    • Senior/Student (age 62-plus, or student ID): $23
    • Children age 12 and under: $21
    • Children age 2 and under: FREE (Please let us know if you have a child that qualifies.)