When have previous presidential election results been announced?
The 2020 election took place on Tuesday 3 November. However, US TV networks did not declare Joe Biden the winner until late morning on Saturday 7 November, after the result in Pennsylvania became clearer.
In other recent elections, voters have had a much shorter wait.
In 2016, when Trump won the presidency, he was declared the winner shortly before 03:00 EST (08:00 GMT) the day after the election.
In 2012, when Barack Obama secured a second term, his victory was projected before midnight on polling day itself.
However, the 2000 election between George W Bush and Al Gore was a notable exception.
The vote was held on 7 November, but the two campaigns went to war over a tight contest in Florida and the race was not decided until 12 December. The US Supreme Court voted to end the state's recount process, which kept Bush in place as winner and handed him the White House.
On the eve of the 2024 presidential election, Vice President Kamala Harris has the support of 51 percent of likely voters to former President Donald Trump’s 47 percent – a lead just outside the poll’s 3.5-point margin of error.