Click to See Complete Forum and Search --> : Why can't the iQue do this?...
BruinFan
11-02-2004, 12:51 PM
Ok, I've seen posts about date/time problems with the iQue.
My question is: The iQue knows exactly where we are in the world within 19 feet. Should it know exactly what time it is at that position on earth? Why can't the iQue constantly keep the clock updated with the right time?
Just a thought...
apersson850
11-02-2004, 01:03 PM
It does keep track of the time already.
The fuzz is all about which time zone you want the time to be converted to.
rafgoor
11-02-2004, 01:08 PM
The time zones are not updated by the sattelites, because those time zones are very irregular shaped (but they could be embedded in a database).
However, I believe that the time of the iQue is updated by the sattelites, related to the defined time zone in your preferences. (maybe someone can correct me if I'm wrong)
stairman
11-02-2004, 07:20 PM
They could do this, but it is a lot of data to add to the maps. The time zone bounaries are not regular, and in the United States do not always coincide with political boundaries. Then the daylight savings time problem. Not all states use DST, and in at least one DST is by local option, so one town may be on DST and the next may not.
Curious Cat
11-02-2004, 07:37 PM
Originally posted by stairman
They could do this, but it is a lot of data to add to the maps. The time zone bounaries are not regular, and in the United States do not always coincide with political boundaries. Then the daylight savings time problem. Not all states use DST, and in at least one DST is by local option, so one town may be on DST and the next may not.
Yes, plus there is the rest of the world too with their peculiarities!
Bokkie
11-03-2004, 01:39 AM
Originally posted by Curious Cat
Yes, plus there is the rest of the world too with their peculiarities!
And in my part of the world there are some very strange pecularities, often with 3 eyes, 4 ears, 8 fingers per hand, and a 10" long nose. Venture out at night and you'll see yellow eyes peering at you from under the flagstones. (j/k)
lostSoul001
11-05-2004, 08:51 PM
yeah, but it is pretty embarrassing when everyone on the plane looks at their cell-phones as they update with the proper timezone time - meanwhile you fiddle with your high-tech confangled device to tell it the timezone.
A device built for travelling really should be able to do this - of course a manual setting should still exist and should override any automatic change.
RVRodie
11-05-2004, 09:25 PM
I suppose that if we all paid Garmin $50 a month to use the iQue, they could make local time a high priority. Maybe we could even make calls on it. :D
rwsmith123
11-06-2004, 09:49 AM
If someone wants to write a program to do it, it would be easy.....once you come up with the database. All you would need to do is have a database that contains the vertices of the polygons that cover a particular timezone. You would also need another database that contains the vertices of the polygons of the areas that don't observe dst. The program would receive gps events and then every few minutes you would check the current position against the databases to see what timezone you are in and if dst is observed, if you detect that it has changed from the last time then pop up a dialog to see if the user wants to change to the new tz.
Most of the polygons for the tz database would be simple but there would be a few complex ones. If you hunt around the internet you might be able to find a database you can use. A quick google search came up with this:
From http://home-4.tiscali.nl/~t876506/Multizones.html
The time zones and the daylight saving time are defined in the The Uniform Time Act of 1966 (15 U.S.C. 260a(a)).
The time zone boundaries are very precisely defined in the US Code of Federal Regulations, Title 49 (Transportation), Subtitle A (Office of the Secretary of Transportation), Part 71 (Standard Time Zone Boundaries).
http://www.twinsun.com/tz/tz-link.htm
it could be done like an overlay for the map (the basemap that is). Garmin maps are pretty complex, i don't think that another overlay would be that big a deal.
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