Is there any easy way to get Seconds from a Date/Time string?

I have 2 strings of the following format that I would like to convert to seconds (since 1900). I need this value to set the t0 on a plot.

Date: "06-30-2014"

Time: "16:06"08"

Is there a CVI function that will do this conversion for me? If not, is there an easy way to do it?

Thanks!