Every night at 9pm (no matter the weather) a horn blower arrives at the obolisk to sound one long note at each of the four corners of the obolisk.
'Setting the Watch' dates back to the year 886 when Alfred the Great visited the City in those unsettled and troubled Viking times, and was so impressed by the place itself and the support he was given by the people against the intruders that he decided to grant the community a Royal Charter. As it was a spontaneous decision he did not have a parchment scroll or anything of that prepared. All he had to offer them as a symbol of the Charter was a horn. He told them that they should treasure the horn, refer to it henceforth as THE CHARTER HORN, and look after it for ever, and the people did. It is still in safe keeping in the City Town Hall today.This is the first woman to be permitted to "Set the watch". She's been doing it for about a year. It only took Ripon 1131 years to apoint a woman horn blower.