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ephemeris time

time standard
Creative Work Time Standard Q908676

Facts

4 properties
Instance of
time standard
Inception
1950[2]
Replaced by
dynamical time[4]
Replaces
universal time[3]
🏷️ Also known as
en ephemeris time en ET ar وقت التقويم الفلكي cs efemeridový čas cs ET de Ephemeridenzeit es Tiempo de efemerides es Tiempo de efemérides fr Temps des ephemerides fr Temps des éphémérides hu efemerisz idő id Waktu Efemeris id Waktu Ephemeris it Tempo delle effemeridi it Tempo effemeride ja 暦表時 ko 역표시 pl Czas efemeryd ru Эфемеридное время sv efemeridtid
🔖 Identifiers · 7
Encyclopedia of China (Third Edition) ID (2026)
4UE4l5
Encyclopedia of China (Third Edition) old ID (2021)
183356
Encyclopædia Britannica Online ID
science/Ephemeris-Time
Freebase ID
/m/02qf3
Great Norwegian Encyclopedia ID
efemeridetid
Microsoft Academic ID (discontinued)
85916333
PSH ID
383

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🔗 Connections
Instance of 1
time standard
Replaced by 1
dynamical time
Replaces 1
universal time
← Replaced by 1
universal time
← Replaces 1
dynamical time
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Summary

ephemeris time is a time standard[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . Encyclopædia Britannica Online. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). ephemeris time. Retrieved November 9, 2026, from https://4ort.xyz/entity/ephemeris-time
MLA “ephemeris time.” 4ort.xyz Knowledge Graph, 4ort.xyz, 9 Nov. 2026, https://4ort.xyz/entity/ephemeris-time.
BibTeX @misc{4ortxyz_ephemeris-time_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ephemeris time}}, year = {2026}, url = {https://4ort.xyz/entity/ephemeris-time}, note = {Accessed: 2026-11-09}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ephemeris time — https://4ort.xyz/entity/ephemeris-time (retrieved 2026-11-09)

Canonical URL: https://4ort.xyz/entity/ephemeris-time · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 17w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    Encyclopedia of China (Third Edition) ID (2026) → 4UE4l5
    Instance of → time standard
    Replaces → universal time
    Replaced by → dynamical time
    + 1 other property edited (see Wikidata diff for full list)
    "Changed the item: QuickStatements 3.0 batch #40849: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.