Ask A Scientist General Science Archive

Question:
What would be the consequences if we did not change our clocks
from CST to DST or vice versa? When did it start and why, and
why do we still do it? I really don't like it being dark in the
morning and also dark when I come home at like 4:30 - 5:00.
 doug f moe

Answer 1:
Doug,
 
I'm not sure exactly when it began, but I believe the original plan was
to 'save' daylight during the summer so farmers could adequately work
and finally harvest their crops. I think summertime off from school also
revolved around a farming community when farm work required more hands
around the house during the summertime.
For safety issues, those going to school, either walking or waiting at
bus stops, could benefit most by having the clocks set so that their
trip 'to' school would be in the safety of 'light'. I'm not sure
exactly how things are there as you go to school, the amount of light
would depend upon your location in relation to the time zones.
Personally, I too dislike what seems like many lost hours of light
during the standard time, but not all of it is due to us changing our
clocks; the days are naturally shorter in our winter, then begin to
increase again as we approach spring.
Ric
Thanks for using NEWTON!

Answer 2:
This was invented by Benjamin Franklin.
 unterman