Switching between GMT and UTC time could be handy for XP.

[Skybuck Flying]

Hello,

GMT time is different all over the world.

While UTC should be the same all over the world.

So if windows could switch back and forth to UTC then that might be handy
for people on the internet on different continents/countries/states etc to
agree on a same time for meeting up or so !

Bye,
Skybuck.

 

[M.I.5¾]

Re: Switching between GMT and UTC time could be handy for XP.


"Skybuck Flying" <BloodyShame@hotmail.com> wrote in message
news:868b$48fc047c$541981e1$10375@cache1.tilbu1.nb.home.nl...
> Hello,
>
> GMT time is different all over the world.
>
> While UTC should be the same all over the world.
>

For all practical purposes GMT (aka UT1) and UTC are the same thing and are
the same all over the planet. Where the difference is unimportant, the
informal abbreviation UT (Universal Time) is often used.

They are not precisely the same, but as the difference can never be more
than 0.9 seconds, you and I are unlikely to notice the difference. UTC is
currently about 0.3 seconds behind GMT. For some reason the rate of change
slowed considerably since mid 1998 (and on 5 occasions has actually gone
backwards for a week or two). UTC has leap seconds added occasionally to
keep it broadly in step with GMT. Up to 1998, these were added approx every
500 days, but the only leap second to be added since the 31st Dec 1998 was
the 31st Dec 2005, representing the longest ever time without a correction.
One will be added on 31st Dec 2008 as the rate of change has speeded up a
little.

Unlike GMT (Greenwich Mean Time), UTC is not officially an acronym, but is a
compromise between the English CUT (Co-ordinated Universal Time) and the
French TUC (Temps Universel Coordonné).

 

[PA Bear [MS MVP]]

Re: Switching between GMT and UTC time could be handy for XP.

M.I.5¾ wrote:
<snip>
> For all practical purposes GMT (aka UT1) and UTC are the same thing and
> are
> the same all over the planet....

....except when British Summer Time is in effect (e.g., now) and GMT = UTC
+1:00 (incorrectly IMHO).

 

[Skybuck Flying]

Re: Switching between GMT and UTC time could be handy for XP.

Yeah more weirdness:

There are three GMT's with +0.

However when I apply them the time is still different !

Very weird !

Still strange to synchronize with other people.

I guess it would work as follows:

We would choose one of the GMT's and then use that to "synchronize".

We then pick a time... and calculate the difference or so...

Then switch back to our own time since we used to do...

But then we might as well calculate the differences with out own time and
pick up..

That's how I did it in the past...

So unless everybody is actually using exactly the same time... and is used
to it... switching back and forth doesn't help much... people must get used
to the same time all over the planet... only then would it be a little bit
more easy to synchronize I guess....

However then all information is lost to understand when people are "up"
because sun is up etc...

Though I life day and night lol

So conclusion:

Old system works just fine, sigh

Bye,
skybuck.

 

[notvalid@invalid.com]

Re: Switching between GMT and UTC time could be handy for XP.

Not correct. GMT does not change - it stays the same all year round
(except for the odd 1-second correction from time to time of course).

BST is only used in summer and is GMT +1 (or UTC+1 if you like).


On Mon, 20 Oct 2008 16:23:57 -0400, "PA Bear [MS MVP]"
<PABearMVP@gmail.com> wrote:

>M.I.5¾ wrote:
><snip>
>> For all practical purposes GMT (aka UT1) and UTC are the same thing and
>> are
>> the same all over the planet....
>
>...except when British Summer Time is in effect (e.g., now) and GMT = UTC
>+1:00 (incorrectly IMHO).

 

[M.I.5¾]

Re: Switching between GMT and UTC time could be handy for XP.


"PA Bear [MS MVP]" <PABearMVP@gmail.com> wrote in message
news:OeiTuNvMJHA.5696@TK2MSFTNGP03.phx.gbl...
> M.I.5¾ wrote:
> <snip>
>> For all practical purposes GMT (aka UT1) and UTC are the same thing and
>> are
>> the same all over the planet....
>
> ...except when British Summer Time is in effect (e.g., now) and GMT = UTC
> +1:00 (incorrectly IMHO).

Regardless of the fact that BST is in effect, UTC is still UTC being as it
is 1 hour behind BST. For all practical purposes GMT is also 1 hour behind
BST (actually 1 hour and 0.32 seconds). GMT never changes because it is
determined by the mean solar day on the prime meridian at Greenwich.

 

[M.I.5¾]

Re: Switching between GMT and UTC time could be handy for XP.


<notvalid@invalid.com> wrote in message
newsggqf4l8ab9isc1j9a10b2gvvrrr98fq1f@4ax.com...
> Not correct. GMT does not change - it stays the same all year round
> (except for the odd 1-second correction from time to time of course).
>

GMT is never corrected with an odd one second correction (because being
solar time in Greenwich would require figuring out a way of shifting the
earth's rotation by the required 15 seconds of arc to match). It is UTC
that gets the 1 second corrections. The time that we use in winter,
although frequently (and incorrectly) referred to as GMT is in fact UTC.
But as I said: for nearly all practical purposes, they are the same thing.

> BST is only used in summer and is GMT +1 (or UTC+1 if you like).
>

It is UTC+1. Strictly, it is *not* GMT+1, though frequently stated as such.

>
> On Mon, 20 Oct 2008 16:23:57 -0400, "PA Bear [MS MVP]"
> <PABearMVP@gmail.com> wrote:
>
>>M.I.5¾ wrote:
>><snip>
>>> For all practical purposes GMT (aka UT1) and UTC are the same thing and
>>> are
>>> the same all over the planet....
>>
>>...except when British Summer Time is in effect (e.g., now) and GMT = UTC
>>+1:00 (incorrectly IMHO).
>

 

[PA Bear [MS MVP]]

Re: Switching between GMT and UTC time could be handy for XP.

> ...GMT does not change

I wholeheartedly agree with you but many online sources and services (e.g.,
ISPs; applications) do not, unfortunately.

notvalid@invalid.com wrote:
> Not correct. GMT does not change - it stays the same all year round
> (except for the odd 1-second correction from time to time of course).
>
> BST is only used in summer and is GMT +1 (or UTC+1 if you like).
>
>
> On Mon, 20 Oct 2008 16:23:57 -0400, "PA Bear [MS MVP]"
> <PABearMVP@gmail.com> wrote:
>
>> M.I.5¾ wrote:
>> <snip>
>>> For all practical purposes GMT (aka UT1) and UTC are the same thing and
>>> are
>>> the same all over the planet....
>>
>> ...except when British Summer Time is in effect (e.g., now) and GMT = UTC
>> +1:00 (incorrectly IMHO).

 

[Skybuck Flying]

Re: Switching between GMT and UTC time could be handy for XP.

In short the real problem is:

People's day and night rytmes are different all across the world = small
window for realtime collaboration.

So a consistent time system doesn't really help for finding these windows !


Bye,
Skybuck.