Did We Have Double Summer Time?

The Summertime Act of 1916 established two clock changes per year. During the second world war, double British summer time was invented as an energy-saving device, effectively putting the country on the same footing as mainland Europe - GMT+1 in the winter, and GMT+2 in the summer. In 1947, Britain reverted to normal.

When did we last have double summer time?

This is known as “British Double Summer Time” (BDST), “Double Summer Time,” or “Double British Summer Time.” During World War II the UK went on an extended DST period from February 25, 1940 to October 7, 1945, effectively adding 1 hour to the time zone (UTC+1).

When did Britain have double summer time?

During the Second World War, in 1941 Britain adopted British Double Summer Time, which saw clocks being put forward two hours ahead of GMT. The clocks were turned back to GMT at the end of summer 1945.

Sophia Al-Mansoor

Sophia Al-Mansoor

Global Business & E-Commerce Reporter

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.