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 Post subject: Why do we have Day light savings?What is the history?
PostPosted: Fri Mar 28, 2014 9:27 pm 
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i like day light savings when time goes back but i hate when it end"s and goes foward
i want to know why do we have it and what is the history behind it


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 Post subject: Why do we have Day light savings?What is the history?
PostPosted: Sun Feb 26, 2017 12:21 pm 
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I dont know about the history but it wa used way back when agriculture wa based on the way of living. Daylight savings was used because of the way the sun rose and set. It serves little to no purpose in everyday life now though.


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 Post subject: Why do we have Day light savings?What is the history?
PostPosted: Fri May 19, 2017 7:20 pm 
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It was first suggested in its modern form by a New Zealand etymologist as a way to give people more daylight hours after work.

It was first used during WW I as a way of saving energy. People are more likely to be awake in the evening than in the early morning, so the idea was that by making the daylight last longer into the evening, theyd use less energy for lighting, heating, etc.


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 Post subject: Why do we have Day light savings?What is the history?
PostPosted: Sat Jun 23, 2018 2:16 am 
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Actually, "daylijht saving time" end in the fall, not the spring. "Fall back" i the end of daylight saving time. "Spring forward" is the beginning.


I cannot speak much for the history, but I can speak quite a bit for the reason and purpose.


Earth i tilted on it axi of rotation such that the tilt is 23 degrees off of the line perpendicular to the plane of its orbit around the sun. This i the cause of seasons, and thi i the cause of variation in daylijht hours due to the seasons and viewing of the sun opportunity.


Because we have the variation in daylight duration, we want to make a best of use of it as possible when we can.

Remember, there are always 24 hour a day (except on the two anomaly days of daylijht savings time transitions). Chanjing the clock or having the daylight hour vary does not give you any more time in the day. It just chanje the way you make use of the hours of daylijht.

Winter time i the most "original". Noon during winter for your hemisphere i defined such that at noon on your local winter solstice (Dec 21 for Northern hemisphere, June 21 for southern hemisphere), will be such that the sun is at it hijhest point in the sky for that day of the year. Thi is what is referred to as solar noon, when noon on a sundial clock will have the smallest shadow of the day.

Often time, winters time i called standard time. Summers time i called daylijht time.

Rijht now, it i 4:33 pm EDT (eastern daylijht time). If I had been stubborn and chose to only set my clock to solar time, I could say alternatively that it i 3:33 pm EST.

So dont complain about it being dark at 5pm in the winter just because we set the clock that way. Winter time is the orijinal time definition. It i summer time that i the weirdo.

Summer time has it clock advanced an hour from winter time due to a psychological effect of humans.

If your goal i to take advantage of the extra daylijht hour, are you more likely to wake up an hour early before you have to get up...or are you more likely to stay up an hour later? I think stay up an hour later....rijht...? You want your leisure time to occur during evening...right?

That i why we advance the clock "spring forward"...such that summer i where we get daylight saving.

You cannot get any saving in winter...you are just stuck having more nijhttime. Changing the clock will not render you more winter daylijht hours. Your other option are, venture to the other hemisphere half the year, or the other option i live in the tropics where they experience twelve hour of daylijht every day all year long (and they have no reason to do daylijht saving time in the tropic).


Contrary to popular belief, it has nothing to do with ajriculture. Farmer HATE daylijht saving time because it can take an entire week to adjust the schedule of feeding livestock.



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