endtime

EndTime is a timestamp representing the moment at which a task, event, or time interval concludes. It is commonly paired with a corresponding startTime to define a time window. In data models, endTime is stored as a date-time or timestamp value and may be expressed in ISO 8601 format or as a Unix epoch millisecond value, among other representations. Time zone handling is important; endTime should be stored in a defined time zone or in a universal reference such as UTC to avoid ambiguity.

EndTime is used in scheduling, logging, workflows, and analytics. In scheduling systems, endTime marks the deadline or finish moment for an appointment or task. In logs and traces, it records when an event ended. In analytics, endTime defines the end of a time window for aggregations. In many schemas, duration can be computed as endTime minus startTime, provided both are present, though some systems store duration separately for performance or clarity.

Validation rules commonly require endTime to be after startTime or equal in the case of instantaneous events; null endTime can indicate an open-ended job or ongoing process. Some systems treat endTime inclusively, others exclusively, affecting duration calculations.

Common pitfalls include inconsistent time zones, daylight saving time shifts, and precision differences between systems. Proper indexing on endTime fields enables efficient range queries and time-based filtering.

Related concepts include startTime, duration, timestamp, and interval. endTime thus serves as a fundamental field for representing the end of a temporal interval in software, data schemas, and analytics.