Pretty sure it was just a typo. @scudsucker lives in C, and he meant what we call 9/11 would be December, 10 there.
Well, it was the tenth for the Romans (decem-) and the 12th for us, so that averages to 11.
Mea culpa, it was not really a typo, just a stupid mistake.
Meh, we all know the months are zero-indexed in C.
Weeks, years, and days too.
Now that this has been done to death, let me hijack this thread to ask the following trivia question. How is that a clock in an Atlantic coastal state can correctly read the same as a clock in a Pacific coastal state?
This text will be blurred The section of western Florida that is west of the continuation of the Georgia/Alabama border is in the central time zone. A strip of eastern Oregon is in the mountain time zone. At 3:00 AM on the first Sunday in November the clock in western Florida will revert to 2:00 AM which is where the clock in eastern Oregon is. An hour later the clock in Oregon will fall back an hour, but for one hour a year they read the same.[/spoiler]
And that is how Columbus discovered America (/s)
My impression is that the “benefit” (such as it is) of changing the clocks is minimal in very high and very low latitudes, and maximal somewhere in the mid-latitudes.
Living at 53 north, we get about 17 hours of daylight in June and about 7 hours in December. No matter what you do to the clocks, we will be either going to work in darkness, or going home in darkness, or both. The effect of any change is short lived, with perhaps a few weeks of “extra” morning daylight in November before we are going to work in the dark again.
Similarly in summer we don’t need the extra hour of daylight in the evening - it stays bright until after 10 pm instead of 9 pm.
Now that I think some more you’re obviously right. No matter how you smoosh the daylight around, there just isn’t enough where you are or farther poleward.
It’s the middle latitudes, say France & Germany or the top 1/3rd of the USA and barely into Canada, where artful rearrangement of the barely-enough winter daylight can produce daylight at one end and at least twilight at the other end of the working / school day.
I traveled to Newfoundland in summer 1988 and remember being baffled by the extra hour of time change. I was proud that I had mastered the half-hour thing and then they gobsmack me with an extra hour out of nowhere. (This was long before the Internet.) I assumed that I must have gotten confused somewhere on the connecting flights out and that the problem was on my end.
Then I got home and forgot about it for 38 years. Until now. Now you have explained it and solved the 38-year mystery. So thank you for that!
Happy to help! This is my best SD moment ever!