Given a table of information (or other list) where the length of time something took is important, what is the best way to show a length of time that can easily range from a few seconds to many hours?
The time units should be easily identifiable. You should immediately know that the number is 20 seconds, or 34 minutes, etc...
The results should be comparable in a list. I should be able to see that 3 hours is quite a bit bigger than 24 seconds. (So don't write: 2.5 seconds, 3.2 hours).
To be displayed on a webpage, so format, size, colour, etc... can all come into play.
See some examples below: