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Time zone for Halifax, Nova Scotia


 

Can someone verify that the time in New York and Halifax are the same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.?
2021-04-09-004232_357x549_scrot.png
2021-04-09-004211_363x553_scrot.png
Eastern Daylight Time
Time zone in New York, NY (GMT-4)
Friday, April 9, 2021, 3:44 AM


Atlantic Daylight Time
Time zone in Halifax, NS, Canada (GMT-3)
Friday, April 9, 2021, 4:44 AM

Are the site data distributed with XEphem out of date??? Is this something the individual user ought to verify for every site he visits?

Thank you,

Alan Davis
--
? "When the Last Tree has been cut down, the Last Fish caught,
?? the Last River poisoned, only then will we realize
?? that One Cannot Eat Money." (Native American Saying)

? ¡°Into this Universe, and why not knowing,
? Nor whence, like water willy-nilly flowing;
? And out of it, as wind along the Waste;
? I know not whither, willy nilly blowing.¡±
?????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )


 

There is a half hour time zone up there somewhere. Might be PEI or NS.? Try a web search.


On Fri, Apr 9, 2021, 3:47 AM Alan Davis <alan3davis@...> wrote:
Can someone verify that the time in New York and Halifax are the same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.?
2021-04-09-004232_357x549_scrot.png
2021-04-09-004211_363x553_scrot.png
Eastern Daylight Time
Time zone in New York, NY (GMT-4)
Friday, April 9, 2021, 3:44 AM


Atlantic Daylight Time
Time zone in Halifax, NS, Canada (GMT-3)
Friday, April 9, 2021, 4:44 AM

Are the site data distributed with XEphem out of date??? Is this something the individual user ought to verify for every site he visits?

Thank you,

Alan Davis
--
? "When the Last Tree has been cut down, the Last Fish caught,
?? the Last River poisoned, only then will we realize
?? that One Cannot Eat Money." (Native American Saying)

? ¡°Into this Universe, and why not knowing,
? Nor whence, like water willy-nilly flowing;
? And out of it, as wind along the Waste;
? I know not whither, willy nilly blowing.¡±
?????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )


 

Hi, Alan: EDT and ADT are different. The Halifax screen-shot showing ADT as having a TZ offset of 4 hours is wrong. ADT is UTC minus 3.

The Halifax entry in my file /usr/share/xephem/auxil/xephem_sites was wrong, so I changed it from AST5ADT to AST4ADT. (Looks like that is the only Atlantic Time entry in my copy of that file.)

Bernie

On 4/8/21 9:46 PM, Alan Davis wrote:
Can someone verify that the time in New York and Halifax are the same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.
2021-04-09-004232_357x549_scrot.png
2021-04-09-004211_363x553_scrot.png
Eastern Daylight Time
Time zone in New York, NY (GMT-4)
Friday, April 9, 2021, 3:44 AM
Atlantic Daylight Time
Time zone in Halifax, NS, Canada (GMT-3)
Friday, April 9, 2021, 4:44 AM
Are the site data distributed with XEphem out of date??? Is this something the individual user ought to verify for every site he visits?
Thank you,
Alan Davis
--
** <>
? "When the Last Tree has been cut down, the Last Fish caught,
?? the Last River poisoned, only then will we realize
?? that One Cannot Eat Money." (Native American Saying)
? ¡°Into this Universe, and why not knowing,
? Nor whence, like water willy-nilly flowing;
? And out of it, as wind along the Waste;
? I know not whither, willy nilly blowing.¡±
?????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )


 

You can get all the time zone information you need here:

On 4/9/21 8:54 AM, Bernie Walp wrote:
Hi, Alan:? EDT and ADT are different.? The Halifax screen-shot showing ADT as having a TZ offset of 4 hours is wrong.? ADT is UTC minus 3.

The Halifax entry in my file /usr/share/xephem/auxil/xephem_sites was wrong, so I changed it from AST5ADT to AST4ADT.? (Looks like that is the only Atlantic Time entry in my copy of that file.)

Bernie

On 4/8/21 9:46 PM, Alan Davis wrote:
Can someone verify that the time in New York and Halifax are the same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.
2021-04-09-004232_357x549_scrot.png
2021-04-09-004211_363x553_scrot.png
Eastern Daylight Time
Time zone in New York, NY (GMT-4)
Friday, April 9, 2021, 3:44 AM


Atlantic Daylight Time
Time zone in Halifax, NS, Canada (GMT-3)
Friday, April 9, 2021, 4:44 AM

Are the site data distributed with XEphem out of date??? Is this something the individual user ought to verify for every site he visits?

Thank you,

Alan Davis
--
** <>
?? "When the Last Tree has been cut down, the Last Fish caught,
??? the Last River poisoned, only then will we realize
??? that One Cannot Eat Money." (Native American Saying)

?? ¡°Into this Universe, and why not knowing,
?? Nor whence, like water willy-nilly flowing;
?? And out of it, as wind along the Waste;
?? I know not whither, willy nilly blowing.¡±
??????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )



 

I don't know why it would change unless it was legislated that way,
that might change a name of a zone.

It's Newfoundland that's 1/2 hour different.
It's the
eastern-most tip of land, not big enough to be full zone so it's a
half. They're at UTC-3:30.

We spent a summer vacation or two visiting Nova Scotia, Prince Edward
Island, Newfoundland because they're all grouped near each other. But
by the Wikpedia article only Newfoundland observes Newfoundland time.

On 4/9/21, Gilbert Gnarley <gnzxzx@...> wrote:
You can get all the time zone information you need here:



On 4/9/21 8:54 AM, Bernie Walp wrote:
Hi, Alan:? EDT and ADT are different.? The Halifax screen-shot showing
ADT as having a TZ offset of 4 hours is wrong.? ADT is UTC minus 3.

The Halifax entry in my file /usr/share/xephem/auxil/xephem_sites was
wrong, so I changed it from AST5ADT to AST4ADT.? (Looks like that is
the only Atlantic Time entry in my copy of that file.)

Bernie

On 4/8/21 9:46 PM, Alan Davis wrote:
Can someone verify that the time in New York and Halifax are the
same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.
2021-04-09-004232_357x549_scrot.png
2021-04-09-004211_363x553_scrot.png
Eastern Daylight Time
Time zone in New York, NY (GMT-4)
Friday, April 9, 2021, 3:44 AM


Atlantic Daylight Time
Time zone in Halifax, NS, Canada (GMT-3)
Friday, April 9, 2021, 4:44 AM

Are the site data distributed with XEphem out of date??? Is this
something the individual user ought to verify for every site he visits?

Thank you,

Alan Davis
--
** <>
?? "When the Last Tree has been cut down, the Last Fish caught,
??? the Last River poisoned, only then will we realize
??? that One Cannot Eat Money." (Native American Saying)

?? ¡°Into this Universe, and why not knowing,
?? Nor whence, like water willy-nilly flowing;
?? And out of it, as wind along the Waste;
?? I know not whither, willy nilly blowing.¡±
??????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )








--
-------------
Education is contagious.


 

Thank you, that is as I expected?? I'd think it well to bring the sites file in the distribution "up to date."? I'm not sure how to do that.??

Alan


On Fri, Apr 9, 2021 at 7:16 AM ab1jx <alan01346@...> wrote:
I don't know why it would change unless it was legislated that way,
that might change a name of a zone.

It's Newfoundland that's 1/2 hour different.
? It's the
eastern-most tip of land, not big enough to be? full zone so it's a
half.? They're at UTC-3:30.

We spent a summer vacation or two visiting Nova Scotia, Prince Edward
Island, Newfoundland because they're all grouped near each other.? But
by the Wikpedia article only Newfoundland observes Newfoundland time.


On 4/9/21, Gilbert Gnarley <gnzxzx@...> wrote:
> You can get all the time zone information you need here:
>
>
>
> On 4/9/21 8:54 AM, Bernie Walp wrote:
>> Hi, Alan:? EDT and ADT are different.? The Halifax screen-shot showing
>> ADT as having a TZ offset of 4 hours is wrong.? ADT is UTC minus 3.
>>
>> The Halifax entry in my file /usr/share/xephem/auxil/xephem_sites was
>> wrong, so I changed it from AST5ADT to AST4ADT.? (Looks like that is
>> the only Atlantic Time entry in my copy of that file.)
>>
>> Bernie
>>
>> On 4/8/21 9:46 PM, Alan Davis wrote:
>>> Can someone verify that the time in New York and Halifax are the
>>> same, as indicated by XEphem??? I am running xephem 4.0.0 on Arch Linux.
>>> 2021-04-09-004232_357x549_scrot.png
>>> 2021-04-09-004211_363x553_scrot.png
>>> Eastern Daylight Time
>>> Time zone in New York, NY (GMT-4)
>>> Friday, April 9, 2021, 3:44 AM
>>>
>>>
>>> Atlantic Daylight Time
>>> Time zone in Halifax, NS, Canada (GMT-3)
>>> Friday, April 9, 2021, 4:44 AM
>>>
>>> Are the site data distributed with XEphem out of date??? Is this
>>> something the individual user ought to verify for every site he visits?
>>>
>>> Thank you,
>>>
>>> Alan Davis
>>> --
>>> ** <>
>>> ?? "When the Last Tree has been cut down, the Last Fish caught,
>>> ??? the Last River poisoned, only then will we realize
>>> ??? that One Cannot Eat Money." (Native American Saying)
>>>
>>> ?? ¡°Into this Universe, and why not knowing,
>>> ?? Nor whence, like water willy-nilly flowing;
>>> ?? And out of it, as wind along the Waste;
>>> ?? I know not whither, willy nilly blowing.¡±
>>> ??????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )
>>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>


--
-------------
Education is contagious.







--
????? "This ignorance about the limits of the earth's ability to absorb
?????? pollutants should be reason enough for caution in the release
?????? of polluting substances."
? ? ? ? ? ? ? ? ?? ---. ?? ? (p. 81)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?


 

Try reading the documentation: . In this case see section 2.3.1.1.

Maybe the documentation should be brought over to the git site.


 

On Fri, Apr 9, 2021 at 2:28 PM Alan E. Davis <lngndvs@...> wrote:
Thank you, that is as I expected?? I'd think it well to bring the sites file in the distribution "up to date."? I'm not sure how to do that.

I have updated the sites file in the GitHub repository, so the file will be correct for any future distributions pushed from there:


Thanks for the question, Alan, and for the solution,?Bernie!


 

And thanks to you.

On Fri, Apr 16, 2021 at 7:07 AM Brandon Craig Rhodes <brandon@...> wrote:
On Fri, Apr 9, 2021 at 2:28 PM Alan E. Davis <lngndvs@...> wrote:
Thank you, that is as I expected?? I'd think it well to bring the sites file in the distribution "up to date."? I'm not sure how to do that.

I have updated the sites file in the GitHub repository, so the file will be correct for any future distributions pushed from there:


Thanks for the question, Alan, and for the solution,?Bernie!



--
? "When the Last Tree has been cut down, the Last Fish caught,
?? the Last River poisoned, only then will we realize
?? that One Cannot Eat Money." (Native American Saying)

? ¡°Into this Universe, and why not knowing,
? Nor whence, like water willy-nilly flowing;
? And out of it, as wind along the Waste;
? I know not whither, willy nilly blowing.¡±
?????? (Rub¨¢iy¨¢t of Omar Khayy¨¢m )


 

On Fri, Apr 9, 2021 at 2:54 PM Elwood Downey <elwood.downey@...> wrote:
Try reading the documentation: . In this case see section 2.3.1.1.
Maybe the documentation should be brought over to the git site.

Thank you for the suggestion! After some experimentation with GitHub Pages settings, the documentation in the repository can now be viewed right on the web:


(Yes, it would have been fun to omit the "GUI/xephem/help" part, but GitHub Pages doesn¡¯t let us specify a custom subordinate root directory; and keeping the full path "GUI/xephem/help" gives us the most flexibility going forward in any case, if folks want to view documents that wind up elsewhere in the repository.)


 

Hi Brandon,

Well, the link is helpful, but what I meant was the doc pages themselves might best be absorbed into github so they can be updated over time as well.

Not that editing them would be any fun. I originally wrote all the docs using Applixware (anyone remember that?) and when that disappeared I hand-edited the html it generated from then on.

In short, feel free to scrape for anything you find?useful.

Elwood


On Fri, Apr 16, 2021 at 12:39 PM Brandon Craig Rhodes <brandon@...> wrote:
On Fri, Apr 9, 2021 at 2:54 PM Elwood Downey <elwood.downey@...> wrote:
Try reading the documentation: . In this case see section 2.3.1.1.
Maybe the documentation should be brought over to the git site.

Thank you for the suggestion! After some experimentation with GitHub Pages settings, the documentation in the repository can now be viewed right on the web:


(Yes, it would have been fun to omit the "GUI/xephem/help" part, but GitHub Pages doesn¡¯t let us specify a custom subordinate root directory; and keeping the full path "GUI/xephem/help" gives us the most flexibility going forward in any case, if folks want to view documents that wind up elsewhere in the repository.)


 

On Fri, Apr 16, 2021 at 3:56 PM Elwood Downey <elwood.downey@...> wrote:
Hi Brandon,
Well, the link is helpful, but what I meant was the doc pages themselves might best be absorbed into github so they can be updated over time as well.
Not that editing them would be any fun. I originally wrote all the docs using Applixware (anyone remember that?) and when that disappeared I hand-edited the html it generated from then on.
In short, feel free to scrape for anything you find?useful.

Thanks very much for permission to snag the?XEphem web site as well! I got busy preparing for travel in late April, but I have finally downloaded the ¡°xephem/¡± directory from your Clear Sky Institute site with ¡°wget -r¡±, and added the resulting files to a ¡°Site¡± directory in the repository. It looks like the result works without any hand-editing!



Happily, nearly all the links in your docs are already relative links, so they are working just fine even though the base URL has changed. Very nice.

I'm not sure I ever used Applixware, though the name is familiar. The Sun labs at Georgia Tech had FrameMaker installed, so that's what I used for a few projects when plain text and TeX didn't seem to fit a particular problem. I don't remember if I ever tried to export HTML from it or not.

I¡¯ll update the project README to point out that this documentation is now also available in-repo. Thanks again!