I am trying to disable the timer function running in the background of a page that i do not own

Previously I simply input the command vTimereq=0 into the console and that seem to do the trick. However now when I try it nothing happens and the timer continues to run. I have tried a few things such as document.getElementById(‘time’).value = “0”; but that command also seems to be invalid. Any help would be greatly appreciated. This is the function that appears when I try to edit 00:04:26