Why are the dates when we switch between summer and winter times (for example swapping between Greenwich Mean Time and British Summer Time in the UK) placed so asymmetrically around the solstices?
(Continued)
• Earlier replies didn’t explain why the dates we switch between summer and winter times are at different distances from the spring and autumn equinoxes. It is because the seasons, and their warmth, lag behind the sun. Early March is usually colder, with an increased chance of morning frosts and ice, than late September. But in Europe there is more to it.
While summer time was used widely…


