It’s been well over a year since Donald Trump and Hillary Clinton each announced they were running for president. Now, we’re finally in the campaign’s final hours.

The US election is on November 8, American time, but in Australia we will be seeing most of the action on Wednesday, November 9.

You can make sure you’re the first to know the winner by signing up to our US election alerts on Facebook Messenger ABC app

Otherwise, here are the key times you need to know and the states you need to watch as we await a winner:

The first voting will begin in the town of Dixville Notch, New Hampshire, which has a population of 12.

They have a pretty cool tradition of voting at midnight, which means its results are known before the rest of the country.

Polls open in some states on the east coast.

Depending on the state, polling booths will open between 6am or 7am local time and close between 7pm or 8pm. (If you’re in line when polls close, you still get to vote.)

Fun fact: there are six different time zones across the United States, but just to make things nice and complex there are 13 states operating with split time zones.

The point is, most voting will take place overnight Tuesday, Australian time.

Polling stations will start to close in eastern states.

Once the polls have closed, there will be a projection for each state based on opinion polls taken throughout the day. They are a good indication of the results but not always correct.

The key results to watch out for at this time are from swing statesFloridaNew HampshireVirginia

Polls close in two more battleground states —North CarolinaOhio

In other words, this is when we might get an indication of how well Mr Trump is faring.

Polls close in 18 states, the most important beingPennsylvania

This is also when the final polls close inFlorida

Polls close in 10 states, includingWisconsinColorado

While Mrs Clinton is considered the favourite to win Wisconsin, a Trump upset there would point to a tight race across the board.

The final polls close at this time inTexas

Voting ends in swing statesNevadaIowa

If Mr Trump doesn’t win Iowa, he’s seen as being pretty much done. Although by this time, we should have a decent idea of how the night has played out.

Voting closes in states on the west coast, includingCalifornia

Polls close inAlaska

The close of the polls on the west coast (i.e.3pm AEDT

The magic number is 270 — that’s the number needed for a majority in the electoral college, where each state (plus Washington DC) is awarded a certain number of electoral college votes based roughly on size and population

The first candidate to reach 270 wins, and swing states dictate the outcome.

Like in Australia, the losing candidate will usually call the winner to concede defeat once that number has been reached.

Mrs Clinton and Mr Trump haven’t confirmed when or where they will cast their ballot, but they are both expected to do so somewhere in New York.

Mrs Clinton’s ‘Hillary for America Election Night Event’ will start at 6pm at the Jacob K. Javits Convention Centre in New York.

The ‘Donald J. Trump Victory Party’ will start at 6.30pm at the New York Hilton Midtown.

This happened in 2000 in the election between president George W. Bush and former vice president Al Gore.

Mr Bush won the presidency after a recount in Florida, via a challenge in the US Supreme Court.

Barack Obama remains president until January 2017, so there’s plenty of time for recounts if need be.

There is a possibility that two candidates will get 269 electoral college votes. It’s also possible no candidate will reach the 270 target.

But don’t worry, America’s constitution covers these scenarios.

If no single candidate receives an electoral college majority, theHouse of Representatives has to decide

Each state delegation has to make the decision, not each representative. Current numbers favour the Republicans, but the vote wouldn’t take place until January, when the next Congress is sworn in.

If there is still no winner, the job goes to the vice president-elect. However it will beup to the Senate to vote

If we still have no winner, the presidency goes to theSpeaker of the House

Not for a while.

The new president and vice president will be sworn in atnoon on January 20

That might seem like a long wait, but up until 1937 presidents weren’t usually sworn in until March because it took so long to count and report the results.

And if after all that, you fear US election withdrawal, don’t worry — after that it’ll be less than two years until the mid-terms!

This post originally appeared on News.

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