Prince Harry and Meghan Markle will soon have a child of their own, and Royal births usually take place at St. Mary's Hospital in London, where paparazzi and fans wait for the parents and newborn to emerge for the first time.
The previous record was held by Korean pop star Kang Daniel, who hit the mark in 11 hours and 36 minutes in January.
They shared some photos alongside a caption welcoming fans to their new profile.
"Welcome to our official Instagram".
Elon Musk has released a Soundcloud rap track ‘#RIPHarambe’
He tweeted about the track between tweets about the Tesla Semi. The Space X boss said: "This might be my finest work". Get push notifications with news, features and more.
Kensington Palace recently announced new guidelines for its social media channels covering the former "Suits" actress and Kate Middleton amid reports of months of online abuse of the two members of the royal family. The daughter of Prince Andrew and Sarah Ferguson took to the social media platform to share a pic from Harry and Meghan's engagement shoot.
Included in their first post is a few photos of the couple together on royal visits. Since then, the account following has doubled, and now stands at 2.1 million followers (correct at the time of writing on 3 April 2019).
Prince Harry and Meghan Markle have broken a world record. This comes as part of the royal couple's efforts to split their household from that of the Duke and Duchess of Cambridge, which has been accompanied by no minor amount of controversy.
Despite rumours baby Sussex would be named after Prince Harry's mother, the late Princess Diana, Elizabeth is now said to be what the royal couple are leaning towards should they have girl.