elapsed time

e·lapsed time (-lpst)

n.

The measured duration of an event.

Thesaurus

Noun

1.

elapsed time - the time that elapses while some event is occurring period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period" one-way light time, OWLT - the elapsed time it takes for light (or radio signals) to travel between the Earth and a celestial object round-trip light time, RTLT - the elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point