# Event Time

> The time at which an event occurred, carried on the event and used to assign it to a window.

Record: `lexicon:event-time`
Kind: artifact
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-event-time

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Bounded State](https://banes-lab.com/records/lexicon/bounded-state.md) and before [Late-Data Handling](https://banes-lab.com/records/lexicon/late-data-handling.md).

## Category

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/records/lexicon-category/streaming-pipeline-dataflow-processing.md)

## Required by

- [Windowing](https://banes-lab.com/records/architecture/windowing.md)

## Linked from

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing.md)