Royal children George, Charlotte and Louis joined the nation in saluting NHS workers battling the coronavirus pandemic.
In a gesture of thanks to frontline staff, everyone across the UK was asked to join a mass round of applause from their doorsteps, windows and balconies at 8pm.
The Duke and Duchess of Cambridge, William and Kate, posted a video of their three children clapping, while Prime Minister Boris Johnson and Chancellor Rishi Sunak also joined in from Downing Street
There was clapping at Windsor Castle, while Prince Charles and the Duchess of Cornwall were said to have joined in too from the Balmoral estate.
Labour leader Jeremy Corbyn also took part, appearing to cheer in a video
The organisers of the Clap for Carers campaign, which was started online, say it was staged because "during these unprecedented times, [NHS staff] need to know we are grateful".
A number of landmarks, including the Wembley Arch, Royal Albert Hall, Lincoln Cathedral and the Principality Stadium, are being lit up in tribute