Am I missing something??????

[Lawnmowerman]

That time of year when clocks change again. And I forget how to adjust the clock on the RAV. Spent about 5 minutes on the MID before the penny dropped it was on the main display.

A fifteen year old Corsa automatically changes the clock but not the RAV - or am I missing a setting?

[FROSTYBALLS]

No. The forum had previous discussions on this last year.

[Lawnmowerman]

15 minutes ago, FROSTYBALLS said:

No. The forum had previous discussions on this last year.

Only missing the last discussion 🤣

[Hayzee]

But it does change automatically if you have the daylight saving time switch on?.........No?

[Cyker]

Mine was wrong, had to go into the menu and set Daylight Savings to Yes  

Weirdly the DST also messed up our CCTV - It won't play back any footage from Sunday from exactly when the clocks went forward, but then it starts working again from 0:00 on Monday!

Interestingly there is a menu option to set time via GPS so maybe the car can automatically change the clocks? However, I think this needs the Nav module which none of the UK Yaris Mk4's have...

[Hybrid21]

I had to do mine manually again this year.

Must read the manual again.......

Iain

[ernieb]

I think it's only manual operation as there is no calendar built into the head unit, just the daylight savings button on or off.  Unless it's supposed to work via a connected phone or GPS?

[philip42h]

13 hours ago, Cyker said:

Interestingly there is a menu option to set time via GPS so maybe the car can automatically change the clocks?

It doesn't appear to have the effect one might hope - I have auto adjust by GPS set 'on' but it doesn't effectively adjust for daylight saving.

As Ernie says, there's no calendar built-in so it doesn't have any means to adjust automatically based on date. There's just the "daylight saving time" button that steps the time forward or back by one hour ...

[Parts-King]

On my Corolla, daylight saving was ON, it does not change automatically, had to turn it to OFF to get the correct time 

[Stopeter44]

9 hours ago, Hybrid21 said:

I had to do mine manually again this year.

Must read the manual again.......

Iain

Simples. DST "on" means that you have normal time, British Standard time, or in my case Central European time, plus 1 hour.

DST "off" means that you have BST or CET without the adjustment for the clocks going forward.

[philip42h]

33 minutes ago, Parts-King said:

On my Corolla, daylight saving was ON, it does not change automatically, had to turn it to OFF to get the correct time 

Except the other way around, surely ... ?

DST 'off' for standard time - in our case GMT

Set DST to 'on' when daylight saving is in effect - i.e. in the summer when BST applies (British Summer Time)

[Hybrid21]

So no matter what the DST is set to it never automatically updates to the correct time anyway.

Iain

[Yugguy1970]

It's that classic Toyota mix of modern tech and twenty-year old processes.

[Hayzee]

The car is linked by 3G or 4G (I assume) to the Toyota servers, so I would have thought it could be updated from those (but clearly isn't).

[Mike2222]

Daylight savings is not enacted in all countries (ie fairly pointless if you're close to the equator), and not necessarily on the same dates, so the only logical explanation for having on-off toggle option of both 'time by GPS' and 'daylight savings' is that the dst is, like others have said, meant to be manually turned on or off by the user at the right time, however if the GPS toggle is on the car should automatically change when you cross timezones/countries, as appropriate. 

 

Otherwise you would expect the car's database to include the dst info and change automatically. 

[philip42h]

As Ernie correctly said earlier, the car doesn't include a calendar, so doesn't know the date let alone the start and end dates for DST. So the user has to provide that input twice a year.

GPS 'time' is always UTC / Zulu time / GMT (give or take a few leap seconds) - the satellites don't observe daylight saving at all, and the GPS signal isn't a particularly good determinant of time. It is a pretty good determinant of location and can / does switch time zones when the car crosses an international border (if you want it to).

Since the car includes a SIM card and, probably, has access to a mobile phone, the system could have been designed to pick-up the correct local time that way ... but it wasn't ... 😉

[Stopeter44]

6 minutes ago, philip42h said:

Since the car includes a SIM card and, probably, has access to a mobile phone, the system could have been designed to pick-up the correct local time that way ... but it wasn't ... 😉

That would be the e-call system, the SIM card, that is. That's an "add on", isn't it, for EU and assimilated markets ? 

[philip42h]

17 minutes ago, Stopeter44 said:

That would be the e-call system, the SIM card, that is. That's an "add on", isn't it, for EU and assimilated markets ? 

Yes - it is mandated by the EU (2018) and adopted across Europe and Russia. Similar systems have been in place in North America for longer - but may be manufacturer specific. It is also what Toyota use to "'phone home" trip details ...

[Cyker]

Yeah it's weird that they didn't leverage the SIM to pull time from the local cell phone towers. Even my phone falls back to that when it can't access NTP (Network Time Protocol) servers.

 

2 hours ago, Yugguy1970 said:

It's that classic Toyota mix of modern tech and twenty-year old processes.

So true!  

[Lawnmowerman]

6 hours ago, Yugguy1970 said:

It's that classic Toyota mix of modern tech and twenty-year old processes.

Time to get a twenty something year old on the books 😄

[Yugguy1970]

Why it doesn't just get the time from the DAB signal or Toyota themselves is a mystery.

[Stopeter44]

2 hours ago, Yugguy1970 said:

Why it doesn't just get the time from the DAB signal

DAB not available in all EU markets.