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Model specific boards => Golf mk7 => Topic started by: GeoBog on 26 October 2014, 19:54

Title: GPS Time & Summer DST setting
Post by: GeoBog on 26 October 2014, 19:54
All,

Have your GTIs updated the time last night to 1 hour behind (fall time)?

I thought the clock would update automatically if the Summer (DST) option is ticked on the Infotainment system?

I have the GPS as the  source for the clock and the Summer DST option ticked but today when I started the engine, the clock was showing 15:30 but the actual time was 14:30. After unticking the Summer DST option, the clock changed automatically to 14:30 which was the correct time. By ticking the box again, it would go to 15:30 again so left it unticked at the moment.

Had a quick look in the Discover Media manual and it states that:

Automatic summer time:  the time will adjust automatically.

Am I missing something here or I've got an issue with mine? Has anybody else noticed the above?
Title: Re: GPS Time & Summer DST setting
Post by: Mr Savage on 26 October 2014, 21:17
Mine didn't auto update either, was very surprised.
Title: Re: GPS Time & Summer DST setting
Post by: monkeyhanger on 26 October 2014, 21:34
Changed mine manually too, it took about 10 seconds all in to navigate the menus, not a bother.
Title: Re: GPS Time & Summer DST setting
Post by: mcmaddy on 26 October 2014, 21:37
It doesn't auto update. You've got a check box for summer time which needs to be unticked for the clocks going back. It's not difficult! The gps function only keeps the time correct and has nothing to do with summer/winter time.
Title: Re: GPS Time & Summer DST setting
Post by: p3asa on 26 October 2014, 22:11
Pity it doesn't pick up the time via RDS like most cars as it would then change automatically.
Title: Re: GPS Time & Summer DST setting
Post by: GeoBog on 26 October 2014, 22:18
Yeah, I have found a topic on the other mk7 forum which explains it. It seems only for Nav Pro it updates automatically, for the normal Discover Nav you have to tick the box twice a year.
Title: Re: GPS Time & Summer DST setting
Post by: mcmaddy on 26 October 2014, 22:21
It doesn't auto update on the nav pro you have to check the box twice a year. I've got the pro and it doesn't auto update.
Title: Re: GPS Time & Summer DST setting
Post by: Mr Savage on 26 October 2014, 22:26
It doesn't auto update. You've got a check box for summer time which needs to be unticked for the clocks going back. It's not difficult! The gps function only keeps the time correct and has nothing to do with summer/winter time.

It isn't difficult no but since my old 1.2 Corsa used to auto update then you'd think a £30,000 2013 Volkswagen would do the same. It's not difficult for VW to make it auto update, especially since it has more tech inside it than PC World.
Title: Re: GPS Time & Summer DST setting
Post by: GeoBog on 26 October 2014, 23:58
It doesn't auto update on the nav pro you have to check the box twice a year. I've got the pro and it doesn't auto update.

A chap from Switzerland claimed on the other forum that his Nav Pro updates automatically, but guess it wasn't true.
Title: Re: GPS Time & Summer DST setting
Post by: mcmaddy on 27 October 2014, 08:28
Would be interesting to see what he has ticked in nav pro options for his to update automatically. It's maybe another feature that we don't get in the UK  :wink:
Title: Re: GPS Time & Summer DST setting
Post by: dubber36 on 27 October 2014, 08:34
I can't understand why it can't change automatically using RDS or GPS.

I noticed an odd thing in my B7 Passat earlier in the year. I had set the instruments to ROW so that I could have the big digital speedo. When in France, the units changed to metric, so did the nav commands, but the clock stayed on UK time.
Title: Re: GPS Time & Summer DST setting
Post by: mcmaddy on 27 October 2014, 08:37
Maybe it's supposed to but doesn't. I wonder what would happen if you just left the nav unit alone, would it update itself from gps then? How long would you leave it though before you changed it manually haha
Title: Re: GPS Time & Summer DST setting
Post by: CraigW on 27 October 2014, 08:38
It's literally a 2 second job. It's no big deal to change it yourself  :huh:
Title: Re: GPS Time & Summer DST setting
Post by: mcmaddy on 27 October 2014, 08:41
Yeah we know it is but just wondering if it's another VW faux pa in the manual where they state it will auto update. I think they mean when you check or uncheck the box it auto updates.
Title: Re: GPS Time & Summer DST setting
Post by: GeoBog on 27 October 2014, 13:23
Would be interesting to see what he has ticked in nav pro options for his to update automatically. It's maybe another feature that we don't get in the UK  :wink:

I'm not too bothered about this. It doesn't matter if I need to tick a box on the screen twice a year, I can do that, no problem. It's just the fact that the manual is confusing (probably the g-english translation) and makes you think something is wrong with your car.

On the other hand, if the source of the clock is the GPS, normally the time should be updated based on your position and date. At least that is what is happening on my standalone Sat Nav.
Title: Re: GPS Time & Summer DST setting
Post by: p3asa on 27 October 2014, 14:15
Maybe I'm missing the point here but if the time is set by the GPS and it doesn't change when the clocks get moved, can it be relied on to always be accurate?

I would expect any clock that was set by GPS, RDS or Radio Controlled, to be accurate, even if you change it manually by a few minutes it should change back to the correct time next time it syncs or whatever its called. Or is that to simplistic?

Title: Re: GPS Time & Summer DST setting
Post by: corgi on 27 October 2014, 17:12
I can't understand why it can't change automatically using RDS or GPS.

GPS has historically been used to set the minutes leaving the hours to be set manually - I don't know why. Vauxhall/Opel have used RDS since the mid 90's to set the clock. I guess others do it as well...
Title: Re: GPS Time & Summer DST setting
Post by: dubber36 on 27 October 2014, 17:33
GPS has historically been used to set the minutes leaving the hours to be set manually - I don't know why. Vauxhall/Opel have used RDS since the mid 90's to set the clock. I guess others do it as well...

My Garmin Edge Cycle GPS device didn't need telling that the clocks had changed. When it is switched on and finds a satellite, it knows the correct time all by itself.
Title: Re: GPS Time & Summer DST setting
Post by: p3asa on 29 October 2014, 14:24
I was out in the car yesterday for the first time after the clocks had changed and the only way to change the time was to put it to manual.
The summer button wouldn't let me activate it which is strange. I guess it knows by the date its not summer?!
So I set the time manually which was fine. I then changed the setting from manual back to GPS and immediately it went to an hour ahead.

So the GPS must set the time but it must be an hour out. The only way around this was to keep it on the GPS setting but change the time zone I was in to -1
Title: Re: GPS Time & Summer DST setting
Post by: fredgroves on 29 October 2014, 15:42
GPS gives a time signal as Zulu time (ie GMT+0). GPS is a US military system, US military runs on Zulu Time.

The time zone setting gives the offset, the summertime setting adjusts it.

Why VW can't figure out what the date for summertime switch over based on all the other settings is whacked. You computer and phone etc work it out just fine... with the same data available.
Title: Re: GPS Time & Summer DST setting
Post by: GeoBog on 20 March 2015, 18:49
Right, a quick update for anyone who is still looking for a solution to this issue. It is possible to configure the Nav unit to autoupdate to summer time without manually ticking any boxes. It needs some VCDS coding which I have detailed in this topic:
http://www.golfgtiforum.co.uk/index.php?topic=260248.msg2498858#msg2498858 (http://www.golfgtiforum.co.uk/index.php?topic=260248.msg2498858#msg2498858)