Dash Cam date reverts to factory setting

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old man
Posts: 490
Joined: Sun Aug 19, 2018 7:23 am
Location: Somerset

Re: Dash Cam date reverts to factory setting

Post by old man » Sat Sep 19, 2020 11:24 am

iwarv wrote:
Sat Sep 19, 2020 11:12 am
Old and Grumpy wrote:
Sat Sep 19, 2020 9:23 am
I think this isn't going to work. We are still in Summer Time so your DST should be ticked, and then you should manually set the time back one hour to the correct time. You untick the DST box in October when the clocks go back to GMT.
I attach a photo of what my settings are:
Clock source: GPS
Summer (DST): ticked

If you live in the UK:
Time Zone: GMT +0h

This way the time will always be correct.
Until end of October when DST ends and you untick that box.

If you have your settings just like this but know that the time is out, then you're not in the UK. :D
Thankyou. I didn't really notice the GPS yesterday as I was concentrating more on setting up my dash cam. I'll have a look later.

old man
Posts: 490
Joined: Sun Aug 19, 2018 7:23 am
Location: Somerset

Re: Dash Cam date reverts to factory setting

Post by old man » Sat Sep 19, 2020 11:35 am

Phew! You had me lying in a darkened room with a cold wet towel round my head for a while. 😄
Just the effect I was hoping for :D :D

scratch113
Posts: 185
Joined: Fri Jan 25, 2019 7:59 pm
Location: South West UK

Re: Dash Cam date reverts to factory setting

Post by scratch113 » Sat Sep 19, 2020 3:52 pm

iwarv wrote:
Fri Sep 18, 2020 12:33 pm
scratch113 wrote:
Tue Sep 15, 2020 7:30 pm
And yet the Kodiaq itself can't do this despite having a GPS feed for the satnav - you have to manually set the time and date and it will not stay particularly accurate. Certainly doesn't change the time when we change the clocks, which my phone seems to be able to manage...
No, my experience is also that it does not automatically enable/disable DST.
That is because (local) governments across this globe can sometimes change DST at a moment's notice.
It's a massive database to keep onboard to work out who in what corner of this world switches when.

It is a programmer's nightmare to successfully deal with DST and timezones. Just watch this video if you want a take the red pill and go down the rabbit hole.

Making the driver do this manually is by far the easier and more reliable option.
Your phone has the benefit of getting regular updates and with a data SIM it is also able to contact HQ.
One day your car will be the same, but we're not there yet.

But other than enabling/disabling DST twice a year and changing the timezone to CET when driving abroad, I find that the onboard time never drifts, suggesting to me that the car is periodically or constantly keeping in lockstep with the UTC time broadcast from the GPS satellites.

I'd have to look, but perhaps there is an option in the settings menu that needs to be ticked or unticked?
Not sure the car takes a feed of time from the GPS though - my car doesn't keep particularly brilliant time, but then I'm a bit OCD about it, so when the 'pips' on the news go and my car still says it's 1 minute before the hour, it annoys me and I find myself manually correcting the time. Given that there's a roughly 10-15 second delay on DAB, that's the wrong way round - it should show the time as being on the hour before the pips as they are delayed by the processing of the DAB signal.

Admittedly I only have to reset the clock about once every 3-4 months, so it's only very slight, but it definitely doesn't keep the time accurately, unlike my iPhone, which is always accurate to the nearest second (and also automatically changes the time when DST begins or ends). Given that both my phone and car have both a GPS feed as well as a SIM card installed, I can't quite get my head around why the car is not capable of taking a time feed from one or other for the clock that's displayed to the driver and passengers at the top of the infotainment system...
New car: Kodiaq Sportline 2.0TDI 190 4x4 DSG
Previous:
2016 LR Disco Sport HSE Lux
2008 Audi A5 3.0TDI
2003 Audi S4 4.2 V8
1998 Audi A4 2.8 quattro
1995 Audi A4 1.8T Sport
1992 VW Golf Mk3 1.9 TD
1990 Ford Escort Mk5 1.6 LX
1983 Vauxhall Astra Mk1 1.3 S

old man
Posts: 490
Joined: Sun Aug 19, 2018 7:23 am
Location: Somerset

Re: Dash Cam date reverts to factory setting

Post by old man » Sat Sep 19, 2020 4:10 pm

scratch113 wrote:
Sat Sep 19, 2020 3:52 pm
iwarv wrote:
Fri Sep 18, 2020 12:33 pm
scratch113 wrote:
Tue Sep 15, 2020 7:30 pm
And yet the Kodiaq itself can't do this despite having a GPS feed for the satnav - you have to manually set the time and date and it will not stay particularly accurate. Certainly doesn't change the time when we change the clocks, which my phone seems to be able to manage...
No, my experience is also that it does not automatically enable/disable DST.
That is because (local) governments across this globe can sometimes change DST at a moment's notice.
It's a massive database to keep onboard to work out who in what corner of this world switches when.

It is a programmer's nightmare to successfully deal with DST and timezones. Just watch this video if you want a take the red pill and go down the rabbit hole.

Making the driver do this manually is by far the easier and more reliable option.
Your phone has the benefit of getting regular updates and with a data SIM it is also able to contact HQ.
One day your car will be the same, but we're not there yet.

But other than enabling/disabling DST twice a year and changing the timezone to CET when driving abroad, I find that the onboard time never drifts, suggesting to me that the car is periodically or constantly keeping in lockstep with the UTC time broadcast from the GPS satellites.

I'd have to look, but perhaps there is an option in the settings menu that needs to be ticked or unticked?
Not sure the car takes a feed of time from the GPS though - my car doesn't keep particularly brilliant time, but then I'm a bit OCD about it, so when the 'pips' on the news go and my car still says it's 1 minute before the hour, it annoys me and I find myself manually correcting the time. Given that there's a roughly 10-15 second delay on DAB, that's the wrong way round - it should show the time as being on the hour before the pips as they are delayed by the processing of the DAB signal.

Admittedly I only have to reset the clock about once every 3-4 months, so it's only very slight, but it definitely doesn't keep the time accurately, unlike my iPhone, which is always accurate to the nearest second (and also automatically changes the time when DST begins or ends). Given that both my phone and car have both a GPS feed as well as a SIM card installed, I can't quite get my head around why the car is not capable of taking a time feed from one or other for the clock that's displayed to the driver and passengers at the top of the infotainment system...
The clock time keeping must vary from car to car I guess. I can't remember if I altered my clock in April, but previous to that, the last time I touched it was last Sept/Oct. Today it was only one minute different to my phone.

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