started at time

CURIE: gmeow:startedAtTime
IRI: https://blackcatinformatics.ca/gmeow/startedAtTime
Category: property
Defined by: gmeow:slices/temporal

The instant at which a time interval begins.

Structure

Property shape: datatype property; gmeow:TimeInterval -> xsd:dateTime; functional

Practical Pattern

Use gmeow:startedAtTime from gmeow:TimeInterval to xsd:dateTime when the relationship itself belongs in the native GMEOW graph.

Example Snippets

These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.

Belief Revision

Source: slices/core/inference/examples/belief-revision.ttl
Examples catalog: open in catalog#example-slices-core-inference-examples-belief-revision

@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/inference/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .



ex:tenureInterval a gmeow:TimeInterval ;
    gmeow:startedAtTime "2026-06-15T11:00:00Z"^^xsd:dateTime ;
    gmeow:endedAtTime   "2026-06-15T11:18:00Z"^^xsd:dateTime .  # closed when the defeater fired

Common Companion Terms

gmeow:TimeInterval

Projects To

Profile	External Targets
`ical`	`ical`, `rdf`
`owl-time`	`rdf`, `time`
`resume`	`schema`
`schema-org-schedule`	`rdf`, `schema`

External Equivalences

Equivalent or closely aligned targets: prov

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences

Source	Kind	Profile	Predicate/Relation	Target	Evidence
`gmeow:startedAtTime`	equivalence	`-`	skos:exactMatch	prov:startedAtTime	`gmeow-temporal.sssom.tsv`; `gmeow:eqTemporal053`; confidence 0.85

Projection Coverage

Source	Kind	Profile	Predicate/Relation	Target	Evidence
`gmeow:startedAtTime`	projection	`ical`	projects to / <=	ical:Vevent, ical:dtend, ical:dtstart, ical:location, rdf:type	`gmeow:mapIcalVeventInterval`
`gmeow:startedAtTime`	projection	`ical`	projects to / <=	ical:Vfreebusy, ical:dtend, ical:dtstart, ical:fbtype, rdf:type	`gmeow:mapIcalVfreebusy`
`gmeow:startedAtTime`	projection	`owl-time`	projects to / <=	rdf:type, time:Instant, time:hasBeginning, time:inXSDDateTime	`gmeow:mapTimeHasBeginning`; confidence 0.9; lossy: the temporal frame (time scale, calendar) drops; the boundary flattens to a bare xsd:dateTime instant
`gmeow:startedAtTime`	projection	`resume`	projects to / <=	schema:startDate	`gmeow:mapResumeStartDate`; confidence 0.9; lossy: the Employment relator (organization, role, compensation, standpoint) and the interval's temporal frame collapse to a flat schema:startDate on the projected EmployeeRole
`gmeow:startedAtTime`	projection	`schema-org-schedule`	projects to / <=	rdf:type, schema:Event, schema:endDate, schema:startDate, schema:superEvent	`gmeow:mapSchemaOrgScheduleOccurrence`
`gmeow:startedAtTime`	projection	`schema-org-schedule`	projects to / <=	rdf:type, schema:Schedule, schema:endDate, schema:repeatFrequency, schema:startDate	`gmeow:mapSchemaOrgSchedule`

Usage Advice

Use when

Use to stamp the start of a gmeow:TimeInterval as a single crisp dateTime when no separate gmeow:Instant object is needed — the lightweight inline bound.

Avoid when

Avoid when the start needs its own frame, granularity, or EDTF value (promote to gmeow:hasStartInstant on a gmeow:Instant) and avoid an xsd:date literal — base-triple time is xsd:dateTime (P3).

How to use

Write a full xsd:dateTime including the offset interpreted by the interval's gmeow:hasTemporalFrame; pair with gmeow:endedAtTime, or omit the end to leave the interval open.

Examples

ex:tenureInterval gmeow:startedAtTime "2019-03-01T00:00:00Z"^^xsd:dateTime.

Published Alignment Graph

Alignments

Relation	Target
`exactMatch`	`prov:startedAtTime`