Disable Java Script during non Busniess Hours?

Please see below script: It is for a chat widget what we would like do is is have the script only "activate" Mon-Fri 9-5pm EST otherwise it would be deactivated and the chat link would not appear..... is this possible>? script type='text/javascript'>(function () { var done = false; var script = [login to view URL]('script'); [login to view URL] = true; [login to view URL] = 'text/javascript'; [login to view URL] = '[login to view URL]'; [login to view URL]('HEAD').item(0).appendChild(script); [login to view URL] = [login to view URL] = function (e) { if (!done && (![login to view URL] || [login to view URL] == 'loaded' || [login to view URL] == 'complete')) { var w = new PCWidget({ c: 'd35014b0-2c20-41c1-a62a-1942aadbcb4b', f: true }); done = true; } }; })();</script>