This is what I came here to say. Even short distances.

Basically, any time you're describing a trip to a destination, it's in time, based on the mode of travel. Hell, I even describe our family hikes in time it takes our littles to walk it, then estimate how long it would take an adult.

My kids school is 3 minutes away or an 8 minute adult-pace bike ride. Fucked if I know how many km that is.