FTB-C000056 / Market data field

Effective Time

Effective time is the instant or interval boundary from which a rule, status, or fact applies in its modeled business domain.

Also known asvalid-from timeeffective timestamp

Intermediate 9 linked topicsPublished

Definitions

In plain terms

A symbol-change notice can be published today but become effective at tomorrow's market open. Effective time records the latter boundary.

Technical

Effective time belongs to valid-time modeling and should be stored separately from publication, ingestion, and revision timestamps.

Scope

The source must define boundary inclusion and the relevant calendar or time zone.

Examples

  • A governed dataset records effective time explicitly instead of inferring it from an ambiguous field.

Common misconceptions

  • Effective Time does not have one universal meaning without its stated market, source, and time context.

Concept relationships

Related

Contrasts with

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D01-F04-A05 Important
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Evidence and governance

  1. Fintech Builder Glossary Definition Contract The Fintech Builder · internal governed contract

    Supports: preferred label, short definition, technical definition

    Limits: Defines governed platform behavior rather than claiming these policies are universally prescribed by external McClellan methodology.

Reviewed by
Last reviewed
2026-07-26
Next review
2027-07-26
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.