Home › Entities › general › leap day

leap day

additional day occurring in a leap year
Thing general Q1597273
Press Enter · cited answer in seconds

leap day

Summary

leap day ranks in the top 2% of general entities by monthly Wikipedia readership (1 views/month).[1]

Key Facts

  • leap day is a type of day[2].
  • leap day is a type of intercalation[3].
  • leap day's different from is recorded as additional day[4].
  • leap day's event interval is recorded as {'unit': 'Q577', 'amount': '+4'}[5].

Body

Definition and Type

Recorded subclass of include day[2] and intercalation[3].

Why It Matters

leap day ranks in the top 2% of general entities by monthly Wikipedia readership (1 views/month).[1] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[6] It is known by 6 alternative names across languages and contexts.[7]

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] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [6] ↑ . Wikidata sitelinks. wikidata.org.
  3. [7] ↑ . 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). leap day. Retrieved April 10, 2026, from https://4ort.xyz/entity/leap-day
MLA “leap day.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/leap-day.
BibTeX @misc{4ortxyz_leap-day_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{leap day}}, year = {2026}, url = {https://4ort.xyz/entity/leap-day}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): leap day — https://4ort.xyz/entity/leap-day (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/leap-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. 5d ago · Twofivesixbot bot · 2026-05-18 view diff on Wikidata ↗
    Event interval → {'unit': 'Q577', 'amount': '+4'}
    Subclass of → day, intercalation
    Different from → additional day
    Subclass of → —
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|7 */ [[Property:P2347]]: 14437, mv to monolingual text names on YSO statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.