Yep. Something along the lines of, casting 0 as time to produce a base time value of midnight (00:00:00), dateadd the operation time decimal value to that, then format the result into hh:mm:ss format.
Which will be returning a time of day, so this will do overflow things if any operation is ever estimated to run more than 24 hours. If that’s not definitely impossible then it’s time to do some clunky modulo things. IE, if your prodstandard is 1.51 something like:
Casting as integer truncates the decimal values, if fractional seconds matter then round those. Get that figured out then hack in some zero-padding, something like