Timespaces can be difficult to describe, as there is often not a perfect synonym for the term. However, some words that share similar meanings are intervals, moments, periods, segments, and spans. Each of these words describes a specific amount of time or a section of time. Intervals and segments both suggest a break or interruption in time, while moments and periods refer to a specific point in time or a duration of time. Spans can refer to larger stretches of time.
In general, the concept of timespaces encompasses the idea of specific, measurable amounts of time. While the exact word choice may vary depending on the context, words like intervals, moments, periods, segments, and spans can all help convey a similar idea.