Reason Princess Kate broke news of cancer diagnosis at exactly 6pm

ok.co.uk:

There is an important reason Princess Kate revealed she has been diagnosed with cancer, at exactly 6 pm. On Friday, 23 March, Catherine, Princess of Wales, released an emotional video explaining that she has undergone a major but successful surgery in January, and at the time, no tests showed any signs of cancer.

However, post-operative tests subsequently found that cancer had been present. She is now undergoing preventative chemotherapy to ensure the cancer does not return.

Kensington Palace released Kate’s statement at exactly 6pm, and there is a reason why they did this.The video was shared at this time to coincide with the BBC News at Six, with the press told in advance to prepare.

This was the exact way and time that King Charles's cancer diagnosis was announced in February. It is not uncommon for the Royals to consider times that would coincide with news broadcasts or newspaper publication times when making an important announcement.