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Summertime: Carbon Emissions

Asked by Alex MayerLabourDepartment for Business and TradeTabled Answered 24 July 2025UIN 68877

The question

To ask the Secretary of State for Business and Trade, whether his Department has made a recent assessment of the potential impact of moving to (a) single and (b) double summer time on cumulative carbon emissions.

Answered by Justin Madders

The Government believes the current daylight-saving arrangements represent the optimal use of the available daylight across the UK. Therefore, we have no plans to introduce single summertime, double summertime, or other such changes. Since the Government does not intend to make changes to the existing system, we have not conducted a recent assessment of the impact on cumulative carbon emissions. The Government is fully committed to complying with the statutory duties outlined in the Climate Change Act and reaching net zero by 2050.

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