endtimestamp

Endtimestamp refers to the timestamp value that marks the conclusion of an interval, event, or record. It is typically used together with a start timestamp to define the duration of a data item or activity. In logs, databases, data pipelines, and event streams, the endtimestamp provides a precise limit for when an event ended.

It is commonly stored as a date-time string in ISO 8601 format or as a numeric value such as a Unix epoch timestamp in seconds or milliseconds. Time zone awareness is important; UTC is commonly used to avoid ambiguity, while local time may require explicit zone information.

Endtimestamp enables duration calculations (end minus start), windowed aggregations, data retention policies, and auditing. In schemas, it is often paired with start_timestamp or start_ts. In streaming systems, end timestamp may be derived from event time or processing time semantics, affecting how data is ordered and analyzed.

Careful with inclusivity: some conventions consider end timestamp inclusive or exclusive. Ensure consistent precision and validation: end should be greater than or equal to start, values should be non-null, and time zones must be consistent. In distributed environments, clock skew and late data can complicate interpretation. Validation rules and schema constraints help maintain data quality.

Storage and querying considerations: indexing end_timestamp improves range queries and time-bound analyses, such as finding all items that finish within a period. Related concepts include start timestamp, duration, time window, watermark, event time, processing time, and temporal databases. While endtimestamp is not a formal universal standard, it is a common field name in data schemas to capture the end of an interval.