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annum

conventional fixed unit of time, derived of the SI system, equal to the mean duration of the tropic year independantly of the geographic location, estimated to 365.2422 fixed days of 86400 seconds, near from the mean year observed on ground
Intangible unit_of_time Q1092296
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annum

Summary

annum is an unit of time[1]. annum has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • annum's instance of is recorded as unit of time[3].
  • annum's instance of is recorded as SI-accepted non-SI unit[4].
  • annum's instance of is recorded as type of year[5].
  • annum's measured physical quantity is recorded as duration[6].
  • annum is a type of duration[7].
  • annum's different from is recorded as year[8].
  • annum's conversion to SI unit is recorded as {'unit': 'Q11574', 'amount': '+31556926'}[9].
  • annum's conversion to standard unit is recorded as {'unit': 'Q4427829', 'amount': '+365.2422'}[10].
  • annum's Wikidata SPARQL query equivalent is recorded as wd:Q1092296 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)[11].
  • annum's unit symbol is recorded as {'lang': 'en', 'text': 'a'}[12].
  • annum's unit symbol is recorded as {'lang': 'eo', 'text': 'j'}[13].

Body

Definition and Type

Recorded instance of include unit of time[3], SI-accepted non-SI unit[4], and type of year[5]. annum is a type of duration[7].

Influence

Things named for annum include Rosh Hashanah[14], a public holiday[15].

Why It Matters

annum has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[2] annum is known by 20 alternative names across languages and contexts.[16]

Entities named for annum include Rosh Hashanah[14], a public holiday[15].

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . Royal Belgian Institute for Space Aeronomy. Retrieved . aeronomie.be. Provenance: wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [14] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [15] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [16] ↑ . Wikidata aliases. 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). annum. Retrieved May 3, 2026, from https://4ort.xyz/entity/annum
MLA “annum.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/annum.
BibTeX @misc{4ortxyz_annum_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{annum}}, year = {2026}, url = {https://4ort.xyz/entity/annum}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): annum — https://4ort.xyz/entity/annum (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/annum · 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. 1d ago · Autom · 2026-07-04 view diff on Wikidata ↗
    Measured physical quantity → duration
    Unit symbol → {'lang': 'en', 'text': 'a'}, {'lang': 'eo', 'text': 'j'}
    Conversion to standard unit → {'unit': 'Q4427829', 'amount': '+365.2422'}
    Aliases → —
    + 6 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P5061]]: a"
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