Poorman's Cron Works As Advertised

I stumbled across this extension that will opens a tab in the Chrome browser to a URL you specify and closes it on a schedule. So long as you had your browser open during the day you could arrange for JavaScript in a HTML code page to execute on a schedule. It is FREE and works as advertised.

CronTab Extension
https://chrome.google.com/webstore/detail/crontabs/abhmbcedbojnghofcfmnageegmkmpkac

Here is a screenshot: