WHERE: The presidential debate will be at David S. Mack Sports and Exhibition Complex at Hofstra University, Hempstead

WHO’S DEBATING: Candidates Republican Donald Trump

and Democrat Hillary Clinton

WHO IS THE MODERATOR: Lester Holt, anchor of ‘‘NBC Nightly News’’

WHEN TO WATCH: Monday from 9 to 10:30 p.m.

WHERE TO WATCH: The debate will be carried live on News 12 and major TV networks without commercial interruption. News 12 also will provide pre-debate coverage and political analysis throughout the day and evening.

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On Monday at noon, Yancey Roy, Newsday’s Albany bureau chief, will discuss what to expect during the debate and the latest political developments with News 12 Long Island anchor Elizabeth Hashagen. Roy will also appear at 3 p.m. with News 12 anchor Antoinette Biordi, who will be in the studio.

Anchor Stone Grissom will broadcast from outside the debate hall; in-studio anchor Colleen McVey will be on air at 5, 6 and 10 p.m. Biordi will be on air at 7 and 10 p.m.

For comprehensive debate and campaign coverage, visit Newsday.com. The site will provide real-time analysis and social media reaction, interactive polls to gauge which candidate Long Islanders believe is winning, behind-the-scenes photos from the debate, and total coverage from the morning of through the end of the debate.

Readers can also can go to newsday.com/debate the day of, during and after the debate.

To watch live streams of the debate, viewers can visit websites and social media platforms including ABC News, Buzz Feed News, CBS News, CNN, C-SPAN, The Daily Caller, Facebook, Fox News, Hulu, Huffington Post, NBC, PBS, Politico, Telemundo, The Wall Street Journal, Twitter, Univision, Yahoo, YouTube.

Members of the media, students and the campus community will be using Facebook Live to broadcast and show what is happening at the debate site. People on Facebook in the United States and around the world will be able to watch these videos live, ask questions and comment with their reactions. Facebook will also have an interactive touch screen to show the conversation on Facebook about the candidates and the issues. (facebook.com)

Snapchat will cover each debate on-site via a “Live Story,” which will allow users on Snapchat to experience the debates from the various perspectives of students, volunteers, media and others. (snapchat.com)

VIEWING PARTIES: ExploreLI is writing a roundup of public viewing parties Monday at spots such as the Cinema Arts Centre in Huntington, which is holding a Presidential Debate Watch Party at 9 p.m. and serving up everything from organic popcorn to veggie burgers to spinach pie.

DEBATE TOPICS: Moderator Lester Holt has selected the following debate topics, subject to changes due to news developments:

‘‘America’s Direction’’

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‘‘Achieving Prosperity’’

‘‘Securing America’’

They will not necessarily be broached in this order.

DEBATE FORMAT: Six 15-minute time segments; two 15-minute segments will focus on each debate topic.

Hofstra will host a Viewer’s Guide to Televised Debates, offering tips for viewing the debate critically and providing a guide on being media literate while watching presidential debates. (hofstra.edu/Debate).

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DEBATE RULES: The debate will be divided into six time segments of about 15 minutes each on major topics selected by the moderator and announced at least one week before the debate.

The moderator will open each segment with a question, after which each candidate will have two minutes to respond. Candidates will then have an opportunity to respond to each other. The moderator will use the balance of the time in the segment for a deeper discussion of the topic.

Source: Commission on Presidential Debates

WHO RECEIVED TICKETS:About 1,000 seats inside the center were available. A few hundred tickets allotted to the university went into a student lottery for which the winners were announced over the weekend; the rest were parceled out to the two campaigns, the Commission on Presidential Debates’ sponsors and donors, media and security.

WHO’S IN THE AUDIENCE: Familiar faces in the crowd will include Sen. Kirsten Gillibrand (D-N.Y.) and Nassau County Executive Edward Mangano, a Republican.

WORKING THE DEBATE:Among those most participating in Monday’s debate will be 400 trained student volunteers performing about 40 duties, including running last-minute errands and acting as ushers for members of the audience.

CAMPUS PREP:Officials at Hofstra only had nine weeks to prepare for Monday’s debate, after learning in July that Wright State University in Dayton, Ohio, had withdrawn as host.

CAMPUS HAPPENINGS:Throughout the day, the Hofstra campus will be buzzing with activity. Panel discussions will take place around the school and several media outlets will be broadcasting live from the Hempstead campus. Interactive exhibits will be scattered throughout, including a display sponsored by One Campaign, an international nonprofit, which will include a White House bounce castle.

Performers will re-enact events from the presidential election of 1872 at a live show called “Democracy in Performance.”

COST OF STAGING DEBATE:$5 million.

Three Hofstra alums are footing most of that cost: real estate developers Peter S. Kalikow and David S. Mack, and Lawrence Herbert, former CEO of Pantone Inc.

GETTING AROUND:Nassau Inter-County Express (NICE) Bus service to Hofstra, Nassau Community College, Nassau County’s Department of Social Services and East Meadow will be disrupted. Riders should check Nice.com, Twitter and Facebook for service updates.

ROAD CLOSURES:

The following roads in the Hofstra campus area will be closed or partially restricted to traffic:

Charles Lindbergh Boulevard and Earle Ovington Boulevard will be closed from 5 a.m. until midnight.

From noon through midnight, Hempstead Turnpike will be closed from Oak Street to Merrick Avenue near Eisenhower Park. Oak Street will also be closed from Hempstead Turnpike, northbound, to Westbury Boulevard.

California Avenue and Meadowbrook Place will be closed, northbound, at Belmont Place. Uniondale Avenue and Manor Parkway will be closed, headed north, at McKenna Place.

Nassau County officials are urging drivers to use other eastbound or westbound routes: Front Street, Old Country Road, or Stewart Avenue.

Lawrence Street in Uniondale will become a one-way street, heading north from Hempstead Turnpike to Westbury Boulevard; Courtenay Road in Hempstead can be accessed one-way, headed south from Hempstead Turnpike to Front Street.

Manor Parkway, Marvin Avenue, Walton Avenue, Gilroy Avenue, and Cunningham Avenue will become one-way streets, for one block south of Hempstead Turnpike.

There will be no parking on Oak and Lawrence Streets, Courtenay Road, and McKenna Place.

Traffic delays and updates will be projected on six electronic portable message signs.

Source: Nassau County, NYSDOT

SECURITY PRECAUTIONS:

Pedestrians entering secure zones in and around

Hofstra University will be subject to search.

Prohibited items:

• Aerosols

• Ammunition

• Animals other than service/guide dogs

• Backpacks

• Bags and signs exceeding size restrictions

• Balloons

• Bicycles

• Coolers

• Drones and other unmanned aircraft systems

• Explosives

• Firearms

• Glass, thermal or metal containers

• Laser pointers

• Mace/pepper spray

• Packages

• Selfie sticks

• Structures

• Supports for signs and placards

• Toy guns

• Weapons of any kind

• Any other item determined to be a potential hazard

Source: Nassau County Police Department