Ah, OK. Coincidentally, I was watching an English detective show yesterday, and, for some reason, it was mentioned that the Queen was Coronated on July 3rd., 1953.
She became Queen on 6th February 1952 on the death of her father King George VI and reigned from that date. The coronation is merely symbolic and is often a year or more after the Accession.
I can remember the radio going off. My mother was listening to Housewives' Choice when it fell silent. She went next door to ask the neighbour if her wireless was working, which it wasn't. It came back on at 11 o'clock with the announcement of the king's death.