Math appearing as Time

I have a Math column that today started showing as Time. Not sure why/what happened.
Screen Shot 2022-03-24 at 8.50.28 AM

Are any of your replacements traceable back to a date/time column?
There was a recent change made where if you subtract one date from another, the result is a duration.
If you need the result as an integer, then the formula needs to be wrapped in a round() or trunc() function.

Indeed, I think that is what happened. Thank you.