Daylight Saving Time info

#11

"Bruce Nichol" wrote

Quote:

Tony Gravagno wrote:

As most of you know, Daylight Saving Time ends
on this Sunday, October 29th at 2am.

No it doesn't... It starts....

Regards,
That was my first reaction, too. But once again we were

wrong, and 'the Gravagno One' was correct. I like site
http://webexhibits.org/daylightsaving/b.html for details.

Winter time is sometimes called "God's time" since
that is when high noon on the clock most closely
coincides with the observed solar noon.

If your regional government indulges in DST, then
during the summer your clocks show the solar time
of your neighbors living one time zone to the East.

Say, is the solar position closest to the indicated
clock noon for people in the center of their assigned
timezone, or for people along one edge?

#12

"Frank Winans" wrote:

Quote:

"Bruce Nichol" wrote
Tony Gravagno wrote:

As most of you know, Daylight Saving Time ends
on this Sunday, October 29th at 2am.

No it doesn't... It starts....

Regards,
That was my first reaction, too. But once again we were
wrong, and 'the Gravagno One' was correct.

No, USA DST does Start in autumn, but there are so many references to
the contrary that fighting it is futile. If I had said originally
that DST starts today then there would likely be more arguments than
from just a few argumentative purists.

Quote:

Say, is the solar position closest to the indicated
clock noon for people in the center of their assigned
timezone, or for people along one edge?

The answer to that would be that there is no firm rule. Since
timezones are drawn according to political lines rather than the
meridian, zones have no "center" and someone on the edge at one
latitude might be more in line with solar noon than someone elsewhere.
See the map on this page to see what I mean.
http://www.worldtimezone.com/
The geek in me says...:
Factor in equitorial bulge, precession (orientation to the solar
ecliptic plane), slow down of Earth's rotation due to gravitational
drag, and other factors, and we find that the answer to your question
might change for any individual standing in the same spot continuously
over the course of one year, over the course of each 26 thousand
years, and over the course of a few million years - and by then zones
will be changed or not observed at all by the cockroaches that will
dominate the planet, so I guess this is all moot.

Tony (I should have stuck with astronomy) G

#13

On 27 Oct 2006 18:24:37 -0700, "Tom deL" <ted (AT) blackflute (DOT) com> wrote:

Quote:

No it doesn't... It starts....

Hmm. You're right that we are attempting to gain or conserve an extra
hour of daylight, starting in the fall. I see your point but that's
not the concensus so I'll have to disagree.

Daylight Saving Time isn't saving anything, this is really Daylight
Shifting Time, for which there is neither a beginning nor an ending.

Pssssst ... TG, some folks are in the Southern Hemisphere <g> ...

Don't worry, Tom.

That's just the usual sort of USA-centric rubbish that the rest of
the world normally has to put up with. (Errr...Yes, Mum... "up with
which the rest of the world normally has to put"...)

And today's TG response doesn't make me change my mind one iota... nor
does it make me feel any better.....
Regards,

Bruce Nichol
Talon Computer Services
ALBURY NSW Australia

If it ain't broke, fix it until it is...

#14

On Sun, 29 Oct 2006 02:01:59 -0800, Tony Gravagno
<g6q3x9lu53001 (AT) sneakemail (DOT) com.invalid> wrote:

Quote:

Peter McMurray wrote:
FALL!
That is what a person does when they trip on a ladder. Surely the correct
English language term is Autumn. :-)

This from a guy who thinks boots and bonnets are parts of a car rather
than articles of clothing?

And a "hood" is ..... ?????

I know, I know, one of your knee-capping Italian immigrant rellys...
<grin>
Regards,

Bruce Nichol
Talon Computer Services
ALBURY NSW Australia

If it ain't broke, fix it until it is...

#15

I think you are all wrong - what is actually happening is that BST
(British Summer Time) is ending and GMT (Greenwich Mean Time) is back
in force !

#16

Quote:

No it doesn't... It starts....
snip
Pssssst ... TG, some folks are in the Southern Hemisphere <g> ...

Don't worry, Tom.

That's just the usual sort of USA-centric rubbish that the rest of
the world normally has to put up with. (Errr...Yes, Mum... "up with
which the rest of the world normally has to put"...)

And today's TG response doesn't make me change my mind one iota... nor
does it make me feel any better.....
Regards,

Now is the time of the year that I envy y'all: While the leaves are
autumning from the trees up here, they are springing into green down
there. Enjoy the coming seasons!
-Tom