day

unit of time lasting 24 hours, derived from the period of Earth's rotation about its axis
Intangible unit_of_time Q573
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day

Summary

day is an unit of time[1]. day ranks in the top 5% of unit_of_time entities by monthly Wikipedia readership (2,636 views/month).[2]

Key Facts

  • day's instance of is recorded as unit of time[3].
  • day's instance of is recorded as SI-accepted non-SI unit[4].
  • day's instance of is recorded as UCUM derived unit[5].
  • day's instance of is recorded as non-SI unit mentioned in and accepted with the SI[6].
  • day's measured physical quantity is recorded as duration[7].
  • day is a type of duration[8].
  • day is a type of counting unit[9].
  • day is a type of time interval[10].
  • day is part of week[11].
  • day's Commons category is recorded as Day[12].
  • day's said to be the same as is recorded as nychthemeron[13].
  • day comprises hour[14].
  • day comprises night[15].
  • day comprises daytime[16].
  • day comprises sunset[17].
  • day comprises golden hour[18].
  • day comprises sunrise[19].
  • day's topic's main category is recorded as Category:Day[20].
  • day's topic's main category is recorded as Category:Days[21].
  • day's Commons gallery is recorded as Day[22].
  • day's described by source is recorded as ISO 80000-3:2006 Quantities and units — Part 3: Space and time[23].
  • day's described by source is recorded as Russian translation of Lübker's Antiquity Lexicon[24].
  • day's described by source is recorded as Small Brockhaus and Efron Encyclopedic Dictionary[25].
  • day's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)[26].
  • day's topic has template is recorded as Template:Parts of a day[27].

Body

Definition and Type

Recorded instance of include unit of time[3], SI-accepted non-SI unit[4], UCUM derived unit[5], and non-SI unit mentioned in and accepted with the SI[6]. Recorded subclass of include duration[8], counting unit[9], and time interval[10].

Use and Application

Components include hour[14], an unit of time[28]; night[15], a time of day[29]; daytime[16]; sunset[17], a time of day[30]; golden hour[18], a natural phenomenon[31]; and sunrise[19], a time of day[32]. day is part of week[11].

Influence

Things named for day include newspaper[33], a product category[34]; Viviz[35], a girl group[36], founded in 2022[37]; and Al-'Ashr al-Awakher[38], a time interval[39], founded in 0631[40].

Why It Matters

day ranks in the top 5% of unit_of_time entities by monthly Wikipedia readership (2,636 views/month).[2] day has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[41] day is known by 58 alternative names across languages and contexts.[42]

Entities named for day include newspaper[33], a product category[34]; Viviz[35], a girl group[36], founded in 2022[37]; and Al-'Ashr al-Awakher[38], a time interval[39], founded in 0631[40].

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] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [33] ↑ . wikidata.org. → on this site
  2. [35] ↑ . wikidata.org. → on this site
  3. [38] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . Wikidata. wikidata.org. → on this site
  3. [30] ↑ . Wikidata. wikidata.org. → on this site
  4. [31] ↑ . Wikidata. wikidata.org. → on this site
  5. [32] ↑ . Wikidata. wikidata.org. → on this site
  6. [34] ↑ . Wikidata. wikidata.org. → on this site
  7. [36] ↑ . Wikidata. wikidata.org. → on this site
  8. [37] ↑ . Wikidata. wikidata.org. → on this site
  9. [39] ↑ . Wikidata. wikidata.org. → on this site
  10. [40] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [41] ↑ . Wikidata sitelinks. wikidata.org.
  3. [42] ↑ . 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). day. Retrieved October 1, 2026, from https://4ort.xyz/entity/day
MLA “day.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Oct. 2026, https://4ort.xyz/entity/day.
BibTeX @misc{4ortxyz_day_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{day}}, year = {2026}, url = {https://4ort.xyz/entity/day}, note = {Accessed: 2026-10-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): day — https://4ort.xyz/entity/day (retrieved 2026-10-01)

Canonical URL: https://4ort.xyz/entity/day · 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. 24d ago · Mahir256 · 2026-09-09 view diff on Wikidata ↗
    P14870 → ont00000800
    Equivalent class → http://dati.beniculturali.it/cis/Day
    "/* wbremoveclaims-remove:1| */ [[Property:P1709]]: https://www.commoncoreontologies.org/ont00000800, #quickstatements; #temporary_batch_1788979007401"
  2. 5w ago · عُثمان · 2026-08-25 view diff on Wikidata ↗
    Equivalent class → http://dati.beniculturali.it/cis/Day
    "/* wbsetclaim-create:2||1 */ [[Property:P1709]]: https://www.commoncoreontologies.org/ont00000800"
  3. 6w ago · SLuecke · 2026-08-17 view diff on Wikidata ↗
    Verbaalpina id → C7054
    "/* wbcreateclaim-create:1| */ [[Property:P10381]]: C7054, #quickstatements; #temporary_batch_1786955435161"
  4. 9w ago · Susmuffin · 2026-07-30 view diff on Wikidata ↗
    Harper's tag → days
    "/* wbsetclaim-create:1||1 */ [[Property:P13772]]: days, Matched to [[:toollabs:mix-n-match/#/entry/289918952|days (#289918952)]] in [[:toollabs:mix-n-match/#/catalog/7915|Harper's tag]] #mix'n'match"
  5. 10w ago · Pierrotrgr · 2026-07-24 view diff on Wikidata ↗
    Biblissima authority id → Q319010
    "/* wbsetclaim-create:2||1 */ [[Property:P11493]]: Q319010, Import ID Biblissima V3 ([[:toollabs:editgroups/b/OR/a6710164cdc|details]])"
  6. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → cz3Si
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  7. 18w ago · Mullanur · 2026-05-29 view diff on Wikidata ↗
    Disjoint union of → list of values as qualifiers, list of values as qualifiers
    "/* wbsetclaim-create:2||1 */ [[Property:P2738]]: [[Q23766486]]"
  8. 19w ago · Twofivesixbot bot · 2026-05-23 view diff on Wikidata ↗
    Unit symbol → d, сут., d +12
    "/* wbsetclaim-update-qualifiers:1||1|3 */ [[Property:P8189]]: 987007543365905171, mv to monolingual text names on J9U statements"
  9. 21w ago · Olksolo · 2026-05-09 view diff on Wikidata ↗
    Maintained by wikiproject → WikiProject Time, WikiProject Measurement
    Wikidata time precision → {'amount': '+11'}
    Said to be the same as → nychthemeron
    Conversion to si unit → {'amount': '+86400'}
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P5061]]: сут"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.