So that you can then convert them up to min or feet, if needs be, when you display them.. but otherwise don't keep ft or min as the "display" unit and convert them s as the save unit, to ft as the display unit, and then to min:s as the display format
So that you can then convert them up to min or feet, if needs be, when you display them.. but otherwise don't keep ft or min as the "display" unit and convert them s as the save unit, to ft as the display unit, and then to min:s as the display format