How can I plot values that are in the time format mm:ss on a graph

I was able to use the SEC_TO_TIME function in DOMO to get my metrics on time duration in the format hh:mm:ss. However I am only able to see this data in a Table format. When I go to plot this on a graph it doesnt work. Any help in enabling this visualization would be great as we have many call center operations related metrics in this format like Average Handle Time, Average BOT Duration, Average First Response Time etc.