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Greenwich Mean Time

time standard
CreativeWork time_standard Q30192
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Summary

Greenwich Mean Time is a time standard[1]. It draws 10,255 Wikipedia views per month (time standard category, ranking #2 of 17).[2]

Key Facts

  • Instance of: time zone[3]
  • Located in time zone: UTC±00:00[4]
  • Official website: https://greenwichmeantime.com/[5]
  • Facet of: time in the United Kingdom[6]
  • Replaces: UTC−00:25:21[7]
  • Replaced by: universal time[8]
  • Stack Exchange tag: https://stackoverflow.com/tags/gmt[9]
  • Short name: GMT[10], ECG[11]
  • UTC timezone offset: 12 hour[12]

Body

Cultural Impact

Things named for Greenwich Mean Time include Greenwich Time Signal[13], a time signal[14].

Why It Matters

Greenwich Mean Time has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[15] It is known by 91 alternative names across languages and contexts.[16]

Entities named for it include Greenwich Time Signal[13], a time signal[14].

Related Entities

Abengourou Aboisso Accra Adiaké Agboville Ait Melloul Bangor Bondoukou Bonoua Bouna Boundiali Bristol Cardiff Conakry Daloa England Gbélo Grand-Bassam Grand-Lahou Great Britain Guernsey Ireland Issia Kaolack Klaksvík Kolda Kong Korhogo Lakota London

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] ↑ . Encyclopedic Dictionary of Astronomy. wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [13] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [14] ↑ . 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. [15] ↑ . Wikidata sitelinks. wikidata.org.
  3. [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). Greenwich Mean Time. Retrieved October 13, 2026, from https://4ort.xyz/entity/greenwich-mean-time
MLA “Greenwich Mean Time.” 4ort.xyz Knowledge Graph, 4ort.xyz, 13 Oct. 2026, https://4ort.xyz/entity/greenwich-mean-time.
BibTeX @misc{4ortxyz_greenwich-mean-time_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Greenwich Mean Time}}, year = {2026}, url = {https://4ort.xyz/entity/greenwich-mean-time}, note = {Accessed: 2026-10-13}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Greenwich Mean Time — https://4ort.xyz/entity/greenwich-mean-time (retrieved 2026-10-13)

Canonical URL: https://4ort.xyz/entity/greenwich-mean-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. 10w ago · BorkedBot bot · 2026-08-05 view diff on Wikidata ↗
    Foldoc id → Greenwich+Mean+Time
    Fandom article id → football:Greenwich_Mean_Time
    Located in time zone → UTC±00:00
    De agostini id → GMT
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetqualifier-add:1| */ Subject named as: Greenwich Mean Time, update metadata from fandom API ([[:toolforge:editgroups/b/CB/f4a5df54f6c|details]])"
  2. 11w ago · RVA2869 · 2026-07-30 view diff on Wikidata ↗
    Ne.se id → ['gmt', 'greenwich-mean-time']
    "/* wbeditentity-update-languages-and-other-short:0||zh, eu, pl, ms, et, el, ar, pt, eo, is, tr, uk, nn, tl, wa, lv, id, ml, ku, fy, th, ro, ca, fo, sl, lt, de, sv, it, nb, cs, scn, ko, fi, en, nl, cy,"
  3. 14w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → ['3uLKeN', '149NQC']
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.