I remember a period when Britain ran on a different BST -
British Standard Time. This was just British Summer Time all year round. It meant that children were going to school in the rush hour in darkness. You could see lines of children in hi-viz waistcoats or reflective SamBrowns. There was a boom-trade in flashing epaulettes and all sorts of flickering and flashing light-wear.
Lighting with LED’s means that we are using anywhere up to 80% less power per lamp than we were when Daylight Saving was introduced. It’s an obsolete concept.
(I recognise that we light things much brighter now than we did in the 40’s and 50’s but still nothing like the power we used to put into a tungsten lamp.
Just leave the clocks at GMT and if you want more light then get up earlier.