Libreoffice Calc - How to get the data order?

I have a spreadsheet with some data, which are start and finish times for an event.

I have a third column where I subtract one from the other to get the elapsed time.

I now want a column of the orders from fastest to slowest.

Does this make sense? I have absolutely no idea what I should be searching for using google to find this answer. Sorry for what I assume is a trivial question.

Example

Start Finish Elapsed Order
09:00 10:10 1:10 3
09:01 10:00 0:59 1
09:02 10:05 1:03 2

How do I get that “Order” column using a formula?

The “RANK” function is what I should have been searching for.