Clocks going back / forward
A friend pointed out that putting the clocks forward in spring empirically saves energy, but the practice still gets me wondering. Let's take the usual 16 hour waking day as read - supposedly typical. Why don't we wake up 8 hours before noon and go to bed 8 hours after, so that our waking day is symmetrical around noon? (For 'noon' I will take solar noon where you are, or mean solar noon where you are, or some coordinates mean solar noon like GMT as appropriate. I'm not quibbling over minutes). Similarly why is the typical working day not symmetrical around noon (8am - 4pm GMT in the UK)? When this proposition is expressed in clock times - get up at 4 in the morning and go to bed at 8 at might it sounds rather silly, but how did this come to be? Why does getting up at 7 and going to bed at 11 sound much more sensible? Why is early or late a feeling about what the clock says? So it seems summer time is a con trick we reasonably willingly / knowingly fall for: We get