Yesterday in the UK, sunrise was about 7am and sunset was about 4:40pm. Electricity demand peaked at about 5:30pm, in the overlap between workplaces closing for

Yesterday in the UK, sunrise was about 7am and sunset was about 4:40pm. Electricity demand peaked at about 5:30pm, in the overlap between workplaces closing for the evening and people returning home and turning everything on. There's a straightforward case for either staying on BST (UTC+1) throughout the year, or (as was the case during WWII) using UTC+2 during summer and UTC+1 during winter, effectively bringing the UK in line with CET/CEST. The key factor in the war was the blackout - street lighting was turned off for the duration and vehicle headlights were mostly covered over, to avoid providing easy targets for night bombing raids. This obviously hugely increased the hazards posed by the early sunsets under GMT. https://www.timeanddate.com/astronomy/uk https://www.timeanddate.com/astronomy/uk https://www.energydashboard.co.uk/live https://www.energydashboard.co.uk/live https://www.bbc.co.uk/news/articles/c0mznrv3jvmo https://www.bbc.co.uk/news/articles/c0mznrv3jvmo