Facebook has boasted that, for the first time ever, a billion people used its social network in a single day.
If true, this would mean approximately one in seven people on Earth visited the company’s website.
Facebook chief executive and co-founder Mark Zuckerberg called it “an amazing milestone”.
“This was the first time we reached this milestone, and it’s just the beginning of connecting the whole world,” he said in a post on Facebook.
Mr Zuckerberg clarified that this was an exact figure, not an average.
“When we talk about our financials, we use average numbers, but this is different.”
He claimed the company was helping bring about a “more open and connected world”.
“Our community stands for giving every person a voice, for promoting understanding and for including everyone in the opportunities of our modern world.”
The co-founder also posted a video celebrating the achievement.
In its earnings update last month, Facebook said monthly active users grew 13 per cent from a year ago to $US1.49 billion ($A2.08 billion). The number of mobile active users rose to 1.31 billion.