What is another word for lapse time?
Pronunciation: [lˈaps tˈa͡ɪm] (IPA) 
Lapse time refers to the period of time that passes between two events or moments. There are several different synonyms for this phrase, including elapsed time, passage of time, duration, and time span. Each of these synonyms can be used interchangeably to describe the amount of time that has passed between two specific events or points in time. Other related phrases might include the interval between two events, the gap between two moments, or the space between two points. Regardless of the phrasing used, the concept of lapse time is an essential part of understanding the course of events in any given situation or context.
