What Time Does the Smithsonian Close? | Hours That Matter

Most Smithsonian museums in Washington, DC close at 5:30 p.m.; the American Art Museum and Portrait Gallery close at 7 p.m.

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Washington, DC museum days can fall apart late in the afternoon, because What Time Does the Smithsonian Close? has more than one answer. The core National Mall museums usually run 10 a.m. to 5:30 p.m., but a few Smithsonian sites close earlier, later, or follow seasonal hours.

The safest plan is simple: treat 5:30 p.m. as the standard closing time for the big National Mall museums, use 7 p.m. for the American Art Museum and National Portrait Gallery, and check the National Zoo separately because its grounds change by season. Admission is free at most Smithsonian locations, but a few sites require free timed-entry passes.

If you are building a one-day plan, enter your highest-priority museum before 2 p.m. Security screening, walking time, and timed passes can shrink the last hour more than most visitors expect.

Smithsonian Closing Times: The Main Answer For Visitors

Smithsonian museums on the National Mall usually close at 5:30 p.m., with last practical entry best treated as earlier than the posted closing time. The Smithsonian’s own visitor page lists the current hours, admission notes, and pass rules for each museum.

For most first-time visitors, the 5:30 p.m. close applies to the National Museum of Natural History, National Museum of American History, National Air and Space Museum in DC, National Museum of the American Indian, Hirshhorn Museum, and several other central museums. The exception most travelers can use is the Reynolds Center in Penn Quarter, where the Smithsonian American Art Museum and National Portrait Gallery usually stay open until 7 p.m.

Because four Smithsonian locations require passes or tickets, it helps to sort entry before you walk over. You can compare official pass availability and paid attraction options around the museums here:

Which Smithsonian Museums Close Later?

The Smithsonian American Art Museum and National Portrait Gallery are the best late-day Smithsonian picks in Washington, DC because both usually close at 7 p.m. Their shared building is about a 20-minute walk north of the National Mall and sits close to the Gallery Place-Chinatown Metro station.

The later close makes these two museums useful after a morning at the Capitol, a midday stop at the National Air and Space Museum, or an afternoon at the National Museum of Natural History. A good late-day move is to leave the Mall around 4:45 p.m., take Metro or walk to Penn Quarter, and use the final 90 minutes for portraits, American art, or the covered Kogod Courtyard.

Cooper Hewitt, Smithsonian Design Museum in New York City usually closes at 6 p.m., but it is not part of a Washington, DC museum day. The National Museum of the American Indian in New York usually closes at 5 p.m.

Current Smithsonian Hours By Major Site

Smithsonian hours vary by building, so the table below is the most useful way to plan the day. The official Smithsonian museums page is the source to check before you go, especially around holidays, construction, and weather closures.

The official Smithsonian visitor page lists most Washington, DC museum admission as free, names the locations that require passes, and posts current hours for the museums and zoo on its Smithsonian Museums and Zoo hours page.

How Late Can You Enter The Smithsonian?

Smithsonian museums do not all publish one universal last-entry time, so arriving 60 to 90 minutes before closing is the safer rule. The National Zoo is clearer: last entry is one hour before the posted grounds closing time.

Security screening can add time at major museums, especially the National Air and Space Museum, National Museum of Natural History, National Museum of American History, and National Museum of African American History and Culture. A 5:05 p.m. arrival at a 5:30 p.m. museum may technically be before closing, but it is rarely enough time to see anything meaningful.

Use this timing rule for a low-stress visit:

• Arrive by 3:30 p.m. for a large museum you care about.
• Arrive by 4:30 p.m. only for a focused stop, such as one exhibit or one gallery.
• Save the American Art Museum or National Portrait Gallery for after 5 p.m.
• Do not plan the National Zoo as a late stop in colder months, when grounds close at 4 p.m.

What Changes On Mondays, Holidays, And Special Dates?

Most Smithsonian museums are open every day except December 25, but some buildings change Monday opening times or close for projects. Holiday weeks can also bring larger crowds even when hours stay the same.

The National Museum of African American History and Culture may open later on Mondays unless the Monday is a federal holiday. The Hirshhorn Museum can also have a later Monday opening, and outdoor spaces such as the Smithsonian Gardens follow different hours than indoor museums.

Planning tip: Do not build a tight day around opening time alone. A museum that opens later but still closes at 5:30 p.m. gives you a shorter visit window.

Where To Stay Near The Smithsonian For Easy Museum Days

Staying near the National Mall, Penn Quarter, or L’Enfant Plaza cuts the walking time between museums and gives you more usable hours before closing. The best base depends on whether you want the Mall at your door, better evening food options, or easier Metro access.

National Mall hotels put you closest to the Smithsonian Castle, Natural History, American History, Air and Space, and the National Museum of the American Indian. Penn Quarter works better if you want the later-closing American Art Museum and National Portrait Gallery within a short walk. L’Enfant Plaza is useful for the south-side Mall museums and easy Metro connections.

For a Smithsonian-focused trip, compare hotels by walking time to the Mall rather than by neighborhood name alone:

A Smart One-Day Smithsonian Plan

The best one-day Smithsonian plan starts with the hardest-entry museum in the morning and saves the later-closing museums for the evening. That order protects your timed pass, gives big museums enough room, and avoids wasting the final hour on a building that is already closing.

For most visitors, this sequence works better than trying to see five museums:

1. 10 a.m. to 12 p.m.: Visit the National Air and Space Museum or National Museum of African American History and Culture if you secured a pass.
2. 12 p.m. to 1 p.m.: Eat near the Mall or move toward your next museum before the lunch rush gets heavy.
3. 1 p.m. to 3:30 p.m.: Choose the National Museum of Natural History or National Museum of American History.
4. 3:30 p.m. to 5 p.m.: Add a shorter stop, such as the National Museum of the American Indian or Hirshhorn Museum.
5. 5:15 p.m. to 7 p.m.: Finish at the National Portrait Gallery or Smithsonian American Art Museum.

That plan is still full, but it lines up with closing times instead of fighting them. Museum fatigue is real, and the Smithsonian is better when you leave space to actually read, pause, and move through security without clock-watching.

Pick The Right Closing-Time Strategy

Smithsonian visitors who only have one afternoon should choose museums by closing time, pass rules, and walking distance. The right move is not to race every building on the map; the right move is to protect the hours that are still open.

• For the classic Mall visit: Plan around a 5:30 p.m. close and start before lunch.
• For a late arrival: Go to the National Portrait Gallery or Smithsonian American Art Museum, which usually close at 7 p.m.
• For kids and animals: Visit the National Zoo earlier, because seasonal closing and last-entry rules matter more there.
• For timed-pass museums: Reserve first, then build the rest of the day around that entry window.
• For the smoothest base: Stay near the National Mall, Penn Quarter, or L’Enfant Plaza so closing time does not get eaten by transit.

The practical answer is that most Smithsonian museums close at 5:30 p.m., but your best late-day option is the American Art Museum and National Portrait Gallery until 7 p.m. Check the exact museum page before leaving your hotel, then plan your final stop around the building that gives you the most real time inside.