Trying to convert a drilldown value before the redirect

Firstly, I'll state that I'm using the Sideview Utils 'Redirector' module for this.

I am making a time-based line chart clickable so that the redirect takes you to a list of events from the time clicked. Everything about the redirection is working as expected, except that the default format of the time I get from $click.value$ is not what I was using. I'd like to either be able to convert the click value in the Redirector parameter arg list, or set a default time format on the chart or drilldown so that the value is passed in an expected format.

Thanks for any help you can offer.