British Summertime Fact Sheet


Download our BST factsheet

In the UK, clocks follow Greenwich Mean Time (GMT) from October to March and British Summer Time (BST) which is GMT + 1 hour from March to October. Most of Europe follows Central European Time, which is one hour ahead of GMT in winter and 2 hours ahead of GMT in summer – always one hour ahead of the UK.

One of the consequences of the UK's system is that more people are killed and injured on the road because of darker evenings in the autumn and winter than would be if we adopted Single/Double British Summertime (SDST).

SDST would mean that we adopted GMT+1 during the winter months, with GMT+2 being applied to the summer period. This would create lighter evenings all year round and result in fewer people being killed and injured in road accidents. It would also bring significant environmental, economic and health benefits, the latter being particularly relevant to public health concerns about obesity. This change would also align the UK with the Central European Time Zone, which would bring additional business benefits.

Our factsheet highlights that the move to SDST would cost the UK very little in monetary terms, but the benefits would be far-reaching, and would cover a wide range of sectors.

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