List the filenames in your directory using
<cfdirectory> tag. Loop through the results of your
<cfdirectory> tag to get each filename. You can then treat
your filename as a list using the character "~" as the delimiter.
Get the part where it contains the date and time(using
ListGetAt) and then get its substring(the year, month, date,
hour, minute, seconds) using the
Mid function.