UK clocks go back Oct. 25, US clocks Nov. 1: mind the one-week gap
For one week, the time difference between the UK and most of the US is an hour smaller than usual.
Updated
British Summer Time ends at 2 a.m. on Sunday, Oct. 25, 2026, when UK clocks go back one hour to Greenwich Mean Time, according to GOV.UK. Across the Atlantic, US daylight saving time runs a week longer, until 2 a.m. local time on Sunday, Nov. 1, the National Institute of Standards and Technology says. (Hawaii and most of Arizona don’t change their clocks.)
That mismatch opens a one-week window, from Oct. 25 to Nov. 1, when the usual time difference between the UK and most of the US is one hour smaller. Recurring transatlantic calls, webinars and reminders that are pinned to one country’s local time can land an hour earlier or later than expected in the other.
When US clocks do change, 2 a.m. becomes 1 a.m. again, so the hour from 1 to 2 a.m. happens twice and that night is an hour longer. If you schedule across the Atlantic, the last week of October is a good time to double-check any invite that was set up in a single time zone.
Sources
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