The shortest unit of time in the multiverse is the New York Second, defined as the period of time between the traffic lights turning green and the cab behind you honking.
Terry PratchettThe landscape was snow and green ice on broken mountains. These weren't old mountains, worn down by time and weather and full of gentle ski slopes, but young, sulky, adolescent mountains. They held secret ravines and merciless crevices. One yodel out of place would attract, not the jolly echo of a lonely goatherd, but fifty tons of express-delivery snow.
Terry Pratchett