Infact
72 / 100
Mostly True London

Big Ben's clock stopped at 10:07 p.m. on 27 May 2005, possibly due to a temperature of 31.8 degrees Celsius.

Infact verdict: Mostly True (72/100).

The claim that Big Ben's clock stopped at 10:07 p.m. on 27 May 2005 is supported by multiple sources, confirming it as a historical fact. The reason for the stoppage, attributed to high temperatures, is plausible but not definitively proven. Evidence suggests that mechanical failure exacerbated by heat is a likely cause, but no authoritative source confirms this as the sole reason.

August 24, 2026 Language: en 2 claims analyzed
How is this score determined? →

Individual claims

91
True History
Big Ben's clock stopped at 10:07 p.m. on 27 May 2005.
Multiple sources confirm that Big Ben's clock stopped at 10:07 p.m. on 27 May 2005 due to a mechanical failure. This is a well-documented historical event.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 40
Source Quality Score 85
Source Quality Weight 20
Llm Reasoning Score 80
Llm Reasoning Weight 40
Llm Reasoning Score Raw 80
Weighted Total 91
Evidence Summary 3 web sources confirm the clock stopped at 10:07 p.m. on 27 May 2005.
53
Mixed Science
The clock stopped most likely due to an extremely hot temperature of 31.8 degrees Celsius.
The claim that the clock stopped due to high temperatures is plausible and supported by some sources, but it is not definitively proven. Mechanical failure exacerbated by heat is a likely cause, but no authoritative source confirms this as the sole reason.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 60
Web Consensus Weight 40
Source Quality Score 50
Source Quality Weight 20
Llm Reasoning Score 50
Llm Reasoning Weight 40
Llm Reasoning Score Raw 50
Weighted Total 53
Evidence Summary 2 web sources suggest heat as a likely cause, but not definitively proven.

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