| Author |
Message |
Jarod (the puppy)
Guest
|
 Posted:
Mon Nov 21, 2005 9:08 am Post subject:
Garmin 96C - Daylight saving time error! |
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Folks, playing with my new toy, I realised that the time is still on
"standard" time.
The Zone is set to the correct one, and the "Daylight saving" setting
is set to AUTOMATIC.
Walking down the street and playing with it, I noticed the ETA was
wrong.
Then looking at the time, I realised that it was one hour slow.
This could be fatal if someone used the GPS' clock when making a
flight because it hasn't adjusted for Daylight Saving time.
Looking in the manual there isn't really much said about HOW it
works.
It is just "listed" as an option.
I have found this with many of the settings in the manual. Instead
of explained, they are simply listed as options with nothing
explaining the workings of the setting.
VERY disappointed with their manuals.
Garmin: Shame shame! (Any ozy will get the joke.)
--
========
Thanks.....
Jarod |
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Heinrich Pfeifer
Guest
|
| Posted:
Mon Nov 21, 2005 5:08 pm Post subject:
Re: Garmin 96C - Daylight saving time error! |
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"Meindert Sprang" <mhsprang@NOcustomSPAMware.nl> wrote in
news:11o3m4jdvava7a8@corp.supernews.com...
| Quote: | "Dennis Pogson" <dennis_nospampogson@ntlworld.com> wrote in message
news:92kgf.23515$mF5.4698@newsfe4-gui.ntli.net...
Automatic means it will adjust to DST on the day the clocks go forward
and
Local time when the clocks go back. It doesn't mean you don't have to set
the correct time initially.
Which is rediculous! If I want to know which timezone I am in, I look
where
I am and look at a timezone map. Isn't that precisely what a GPS is
capable
of?
|
no.
Imagine you are very close to a time zone border. You will not want the GPS
receiver time reading jump forward and backward, caused by the wandering GPS
error.
Or, imagine you are on a big ship cruizing across the ocean. Your captain
will define what time is valid through the whole trip.
The OP had another problem: the receiver says it will change automatically
to daylight saving time, but it appears not to know the rules for all
countries.
--
Heinrich
http://www.gartrip.de
mail: new<at>gartrip.de |
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Dennis Pogson
Guest
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| Posted:
Mon Nov 21, 2005 5:08 pm Post subject:
Re: Garmin 96C - Daylight saving time error! |
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|
Jarod (the puppy) wrote:
| Quote: | Folks, playing with my new toy, I realised that the time is still on
"standard" time.
The Zone is set to the correct one, and the "Daylight saving" setting
is set to AUTOMATIC.
Walking down the street and playing with it, I noticed the ETA was
wrong.
Then looking at the time, I realised that it was one hour slow.
This could be fatal if someone used the GPS' clock when making a
flight because it hasn't adjusted for Daylight Saving time.
Looking in the manual there isn't really much said about HOW it
works.
It is just "listed" as an option.
I have found this with many of the settings in the manual. Instead
of explained, they are simply listed as options with nothing
explaining the workings of the setting.
VERY disappointed with their manuals.
Garmin: Shame shame! (Any ozy will get the joke.)
|
Automatic means it will adjust to DST on the day the clocks go forward and
Local time when the clocks go back. It doesn't mean you don't have to set
the correct time initially. |
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Meindert Sprang
Guest
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| Posted:
Mon Nov 21, 2005 5:08 pm Post subject:
Re: Garmin 96C - Daylight saving time error! |
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|
"Dennis Pogson" <dennis_nospampogson@ntlworld.com> wrote in message
news:92kgf.23515$mF5.4698@newsfe4-gui.ntli.net...
| Quote: | Automatic means it will adjust to DST on the day the clocks go forward and
Local time when the clocks go back. It doesn't mean you don't have to set
the correct time initially.
|
Which is rediculous! If I want to know which timezone I am in, I look where
I am and look at a timezone map. Isn't that precisely what a GPS is capable
of?
Meindert |
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Jack Erbes
Guest
|
| Posted:
Tue Nov 22, 2005 1:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
Jarod (the puppy) wrote:
<snip>
| Quote: | This could be fatal if someone used the GPS' clock when making a
flight because it hasn't adjusted for Daylight Saving time.
|
Set the GPS to UTC and use that for planning, it is actually easier in
the long run.
ZULU/GMT/UTC never gets adjusted and it is pretty much a no brainer to
work out the UTC to local conversion. But you'll have to remember that
the UTC to local DST difference will change as you go in and out of DST.
Jack
--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com) |
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jmorriss@idirect.com
Guest
|
| Posted:
Tue Nov 22, 2005 1:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
Jarod (the puppy) wrote:
| Quote: | Folks, playing with my new toy, I realised that the time is still on
"standard" time.
The Zone is set to the correct one, and the "Daylight saving" setting
is set to AUTOMATIC.
Walking down the street and playing with it, I noticed the ETA was
wrong.
Then looking at the time, I realised that it was one hour slow.
This could be fatal if someone used the GPS' clock when making a
flight because it hasn't adjusted for Daylight Saving time.
|
See http://webexhibits.org/daylightsaving/k.html for some other
possible problems: in particular the mis-timed time bomb... |
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Peter H. Coffin
Guest
|
| Posted:
Wed Nov 23, 2005 1:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
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|
On Mon, 21 Nov 2005 16:33:09 +0100, Heinrich Pfeifer wrote:
| Quote: | The OP had another problem: the receiver says it will change automatically
to daylight saving time, but it appears not to know the rules for all
countries.
|
Additionally, the GPS will assume that the rules for DST changes will be
constant unless updated by firmware. Those rules (covering what days the
changes back and forth) change be changed by governing bodies.
--
95. My dungeon will have its own qualified medical staff complete with
bodyguards. That way if a prisoner becomes sick and his cellmate tells the
guard it's an emergency, the guard will fetch a trauma team instead of
opening up the cell for a look. --Peter Anspach's Evil Overlord List |
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Jarod (the puppy)
Guest
|
| Posted:
Wed Nov 23, 2005 9:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
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|
"JE" == "Jack Erbes" writes:
JE> Jarod (the puppy) wrote:
JE>
JE> Set the GPS to UTC and use that for planning, it is actually
JE> easier in the long run.
JE>
JE> ZULU/GMT/UTC never gets adjusted and it is pretty much a no
JE> brainer to work out the UTC to local conversion. But you'll
JE> have to remember that the UTC to local DST difference will
JE> change as you go in and out of DST.
Granted, but sometimes it throws me converting to/from UTC.
Also, it doesn't address the problem that there is a setting for DLS,
and there are 3 settings:
ON
OFF
AUTOMATIC
Yet the latter isn't explained.
--
========
Thanks.....
Jarod |
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Jarod (the puppy)
Guest
|
| Posted:
Wed Nov 23, 2005 9:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
"PHC" == "Peter H. Coffin" writes:
PHC> On Mon, 21 Nov 2005 16:33:09 +0100, Heinrich Pfeifer wrote:
PHC> > The OP had another problem: the receiver says it will change
PHC> > automatically to daylight saving time, but it appears not to
PHC> > know the rules for all countries.
PHC>
PHC> Additionally, the GPS will assume that the rules for DST changes
PHC> will be constant unless updated by firmware. Those rules
PHC> (covering what days the changes back and forth) change be
PHC> changed by governing bodies.
PHC>
As true as that statement is, it is mollycock.
As much as I hate Windoze, their OS has enough "intelligance" (cough)
to know when the daylight saving times come in.
Any "changes" by governing bodies could be accomodated in software
updates by Garmin.
It won't/wouldn't be rocket science.
--
========
Thanks.....
Jarod |
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Jarod (the puppy)
Guest
|
| Posted:
Wed Nov 23, 2005 9:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
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"HP" == "Heinrich Pfeifer" writes:
HP> > Which is rediculous! If I want to know which timezone I am in,
HP> > I look where I am and look at a timezone map. Isn't that
HP> > precisely what a GPS is capable of?
HP>
HP> no.
HP>
HP> Imagine you are very close to a time zone border. You will not
HP> want the GPS receiver time reading jump forward and backward,
HP> caused by the wandering GPS error.
Unless you are moving back and forth accross the line, why would the
time zone "zone" change?
HP> The OP had another problem: the receiver says it will change
HP> automatically to daylight saving time, but it appears not to
HP> know the rules for all countries.
Correct.
So I think it is very neglegent of Garmin to include something with
no explination of how it works.
--
========
Thanks.....
Jarod |
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Jack Erbes
Guest
|
| Posted:
Wed Nov 23, 2005 5:08 pm Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
Jarod (the puppy) wrote:
| Quote: |
Granted, but sometimes it throws me converting to/from UTC.
|
Maybe it is an issue of practice makes perfect.
| Quote: | Also, it doesn't address the problem that there is a setting for DLS,
and there are 3 settings:
ON
OFF
AUTOMATIC
Yet the latter isn't explained.
|
Automatic apparently means that, in certain time zones and during a
predetermined range of dates, the local time display will be adjusted by
one hour.
One of the first parts of the process of attaining a fix is to get the
time from a satellite, I presume that once the GPS is localized it uses
that to calculate the local time if that is your display preference. I
always leave my GPS receivers in the UTC display mode.
I am a little nostalgic about ZULU time, it reminds me of the good old
days in the Navy.
Jack
--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com) |
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Heinrich Pfeifer
Guest
|
| Posted:
Wed Nov 23, 2005 5:08 pm Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
"Jarod (the puppy)" <dog_kennel_alias@zeta.org.au> wrote in
news:K1.G1.Ke2QI9QLGbc3ewd.NR@zeta.org.au...
| Quote: | HP> Imagine you are very close to a time zone border. You will not
HP> want the GPS receiver time reading jump forward and backward,
HP> caused by the wandering GPS error.
Unless you are moving back and forth accross the line, why would the
time zone "zone" change?
|
if you are standing still very close to the border, your GPS will assume
that you are moving around within its error range. Not to forget the
additional error caused by limited map precision.
| Quote: | So I think it is very neglegent of Garmin to include something with
no explination of how it works.
|
I agree completely. This manual is almost trivial.
--
Heinrich
http://www.gartrip.de
mail: new<at>gartrip.de |
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zulutime
Guest
|
| Posted:
Thu Nov 24, 2005 1:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
Heinrich Pfeifer wrote:
| Quote: | "Jarod (the puppy)" <dog_kennel_alias@zeta.org.au> wrote in
news:K1.G1.Ke2QI9QLGbc3ewd.NR@zeta.org.au...
HP> Imagine you are very close to a time zone border. You will not
HP> want the GPS receiver time reading jump forward and backward,
HP> caused by the wandering GPS error.
Unless you are moving back and forth accross the line, why would the
time zone "zone" change?
if you are standing still very close to the border, your GPS will assume
that you are moving around within its error range. Not to forget the
additional error caused by limited map precision.
So I think it is very neglegent of Garmin to include something with
no explination of how it works.
I agree completely. This manual is almost trivial.
|
My Garmin manual says:
"Daylight savings time can be set to 'AUTOMATIC' (using the built-in
almanach to automatically change the clock settings when daylight
savings goes into or out of effect). You can choose 'YES' to manually
add daylight savings or 'NO' to remain on standard time."
I'd never looked at it before Jarod posted the question; it is not
hard to figure out.
Jarod seems to be struggling with the technology. He probably did not
have the zone and DST set correctly.
HTH |
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Marc Brett
Guest
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| Posted:
Thu Nov 24, 2005 7:16 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
|
|
On Wed, 23 Nov 2005 08:11:36 GMT, "Jarod (the puppy)"
<dog_kennel_alias@zeta.org.au> wrote:
| Quote: | As much as I hate Windoze, their OS has enough "intelligance" (cough)
to know when the daylight saving times come in.
Any "changes" by governing bodies could be accomodated in software
updates by Garmin.
It won't/wouldn't be rocket science.
|
And yet, no official body seems to want to grasp this particular nettle. What
would happen if, God forbid, ADO got hit by that proverbial bus?
http://www.boingboing.net/2005/10/29/daylight_saving_ends.html
"At a recent meeting of the CalConnect calendaring consortium I was astounded to
learn that there is no official body that tracks timezone data around the world.
The best information is in the tz database which is maintained, as I understand
it, on a completely voluntary basis by Arthur David Olson, a systems
administrator at NIH, for whom this is not even his regular day job. This
database is apparently the basis used by almost all operating systems and
software around the world to keep track of timezone information. And there are
some wacky things to keep track of - for instance, Myanmar is +6.5 hours from
UTC, and Nepal is +5:45 hours! " |
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Doug Forster
Guest
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| Posted:
Mon Nov 28, 2005 9:08 am Post subject:
Re: Garmin 96C - Daylight saving time error! |
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| Quote: | Jarod seems to be struggling with the technology. He probably did not
have the zone and DST set correctly.
|
I live just across the ditch from Jarod (NZ) and I am quite certain my 60CS
is set up correctly and it definitely does NOT change to DST at the correct
time. I think Garmin have a bug.
Cheers
Doug Forster |
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