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

[Guest 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.

[Guest 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).

[Guest 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).

[Guest 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.

[Guest 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).

[Guest 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.

[Guest M.I.5¾]

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

 

 

<notvalid@invalid.com> wrote in message

news:oggqf4l8ab9isc1j9a10b2gvvrrr98fq1f@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).

>

[Guest 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).

[Guest 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.