Does Day Light Saving Really Save Energy??

whatdidyousay! said:
Then that all more why we should stop doing this! We do not use candles any more! This is so out dated it not funny! I looked this up and was done to cut down the uses of candles!!!
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Maybe now the purpose of it for us to cut down on using our lights. :giggle:
 
DST is important for botanists and plant biologists. For those of you who have taken some form of plant biology in high school or college, you might recall the whole deal about phytochromes.

For short-day and long-day plants I'm sure it is critical to understand how many hours they are awake and in pR/pFR mode from day to day in study evaluations, and for farming harvests too. I think I read somewhere that some farmers use DST as a measure when or when to not harvest their crops.

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naisho said:
DST is important for botanists and plant biologists. For those of you who have taken some form of plant biology in high school or college, you might recall the whole deal about phytochromes.

For short-day plants I'm sure it is critical to understand how many hours they are awake and in pR/pFR mode from day to day in study evaluations, and for farming harvests too. I think I read somewhere that some farmers use DST as a measure when or when to not harvest their crops.
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But plants don't use clocks, and if you are timing something a real chronometer (timer) is better (more accurate) then a clock.

Using X-weeks from the solstices ... or equinox
 
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FireTiger said:
But plants don't use clocks, and if you are timing something a real chronometer (timer) is better (more accurate) then a clock.
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Yeah, I am stating that it is in a controlled environment (or uncontrolled).
Another way of saying it: crops being harvested outdoor vs indoor, in DST vs non-DST lighting.
It is not operating on the plant's timing/clock, right?
 
sequoias said:
Well, I've seen middle school students wait for the bus early in the morning and it is dark out there. I haven't heard any kidnapping or whatever from that. It doesn't make much difference at all. I prefer to keep the time same as it is. It's basically obsolete today because it originally was used for farming purposes back in the early days. The days have been numbered.
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I think parents where about their kids having to walk to school in the dark during winter and the sidewalks will not be plowed . We have a few streets that have no sidewalks and the kids have to walk on the side of the road .
A girl was killed by a drunk driver this way. It was so tragic , her boyfriend was hurt very badly . It was during the winter and after school.
 
shel90 said:
Maybe now the purpose of it for us to cut down on using our lights. :giggle:
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I heard that saving light saving does not really save energy. People end up driving more to take day trips and that burn up energy.
 
naisho said:
Yeah, I am stating that it is in a controlled environment (or uncontrolled).
Another way of saying it: crops being harvested outdoor vs indoor, in DST vs non-DST lighting.
It is not operating on the plant's timing/clock, right?
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I have timer that turn on and off lights, it is not set by a 'clock' it is set by increments of 15 minutes as a timer... (not very accurate that one, precise but not accurate)

The time that the clock says is irrelevant to if a plant blooms...

Chickens lay an egg about every 9-12 daylight hours, in summer in FL this is nearly day, in winter in FL this is every other day...

It doesn't matter if the clock says 8:00 AM or 6:00 AM the chickens and plants don't read clocks... my hens have no watches.

Before -time- was invented plants bloom.

Would it help in record keeping in an experiment?

Maybe, its easier to say laying pullets and hens need 9-12 hours of daylight to properly make an egg then saying day one, hen one lays one egg at 7:00, day two hen one lays and egg at 8:00...day 10 hen 1 lays at 4:00 PM, day 11 hen one skips a day...
 
FireTiger said:
I have timer that turn on and off lights, it is not set by a 'clock' it is set by increments of 15 minutes as a timer... (not very accurate that one, precise but not accurate)

The time that the clock says is irrelevant to if a plant blooms...

Chickens lay an egg about every 9-12 daylight hours, in summer in FL this is nearly day, in winter in FL this is every other day...

It doesn't matter if the clock says 8:00 AM or 6:00 AM the chickens and plants don't read clocks... my hens have no watches.

Before -time- was invented plants bloom.

Would it help in record keeping in an experiment?

Maybe, its easier to say laying pullets and hens need 9-12 hours of daylight to properly make an egg then saying day one, hen one lays one egg at 7:00, day two hen one lays and egg at 8:00...day 10 hen 1 lays at 4:00 PM, day 11 hen one skips a day...
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On the farm, we mimic this by having the lights in the chicken houses placed on a timer and the temperature regulated. The lights are on at 5:30 am and they turn off at 9:00 pm. This mimics the longest day of the year. This causes the chickens to lay eggs more frequently. On the average they lay one egg per day, sometimes twice if their biological timing lands just right. Like for instance they lay an egg very early in the morning around 6:00 or so, then they might lay another one very late around 9:00 pm, but this is rare. On the average a chicken will lay an egg every day to every other day.

To stimulate the warm summer temperatures - we try to keep it between 70-80 degrees where possible. The lowest I have seen is 64 degrees back last winter when it was around 0 degrees in the morning. In the summer when we were having record temperatures it got to 95 inside the chicken houses. There is only so much you can do when you are trying to efficiently temperature control a large space like that.
 
I definitely prefer more sunlight in the later part of the day. Taking my dog for her 5:30pm walk or grabbing groceries is less fun when it's pitch black outside. Plus it feels unsafe since I use sight to spy any weird people or stray animals on the approach.

But the extra hour of sleep on Sunday felt great!
 
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