lasttime

Lasttime is a term that can refer to several related concepts tied to time and chronology. In everyday English, the phrase “last time” denotes the most recent occasion on which something occurred and is used to contrast with future or past events.

In computing and data systems, lasttime or lastTime is commonly used as an identifier for the timestamp of the most recent event or state change. It is typically stored as a numeric timestamp (such as Unix epoch seconds), an ISO 8601 string, or a language-specific datetime object. Variables or fields named lastTime, last_time, or lasttime appear in logs, databases, caches, and user-session data to enable timing calculations, scheduling decisions, or cache validity checks. When implemented with time zones, care is taken to store and compare times consistently to avoid ambiguity.

Database schemas may include a column named lasttime or last_seen to indicate the last observation of a record. In log analysis and event processing, the lasttime value helps determine recency and ordering of events and can be used in queries that filter for recent activity.

Some software projects designate a module, class, or function named LastTime as a time utility, though there is no single standard library by that exact name. The term remains generic, and its precise meaning depends on context, programming language, and naming conventions. See also: timestamp, timekeeping, event logging, and cache invalidation.