Lightning timestamp incorrect in Homey

[EricMuhren]

Hi,

Very nice app! In Homey the timestamp of lightnings is one hour early. The time and date in the hub are correct. Is there a possibility to set an offset? Or another solution?

Thanks in advance.

[AdyRock]

Hmm, I'm not sure why. The time of my last strike reads the same in Homey and WS View. I can't say for sure if that was the correct time as it was 4 days ago and I didn't look then.
The app should adjust the UTC time to the same time zone as Homey, so is homey set to the correct region?

[EricMuhren]

Hi,

Today thunder again! I'll show you the screenshots.

[AdyRock]

Do you know for sure which one is correct for your time zone?

[EricMuhren]

The GW1100C is the correct one. Screenshots of Homey an WC1100C you can see timezones and times are the same.
Perhaps you can create an offset parameter (+-hours) and add or substract it before showing it to Homey. Then the insights will be correct as well. Or you are able to find the root cause....

[AdyRock]

I have a feeling that both the bridge and Homey are adjusting the time.
I will add an option to switch off the adjustment in the device advanced settings.

[EricMuhren]

That would be nice!

[AdyRock]

Should be in the test version in the store.

[EricMuhren]

Thanks. I still have to wait for a thunderstorm to check.

[EricMuhren]

The datetime stamp in GW1100C is correct.

With new option set to no the difference is -2 hours. With option set to yes the difference is -1 hour.

[AdyRock]

Could you set the time format in the advanced settings to Time Stamp and the Adjust Time to No, then let me know what time is shown in the Homey device and what time is shown in WS View.
Then set the Adjust Time to Yes and let me know the Homey device time.

For me the time reported by the API (Time Stamp and the Adjust Time to No) is GMT 2024-08-21T00:05:29.000Z, while WS View is showing BST, 2024-08-21T01:05:29.000Z. If I set the Adjust time to Yes then both show BST.

What is your local time offset from GMT?
Do your clocks adjust for summer time?

[EricMuhren]

Hi,

Time Stamp No

Time Stamp Yes

Time Stamp WS

Amsterdam = GMT + 1
Clocks are adjusted for summer time. (DST)

[AdyRock]

So just to make sure I understand, your current time is GMT + 2?

In which case it seems the API is returning GMT as expect but the app is not adjusting for your timezone.
The new option is switching off the summer time adjustments and that seems to be working as expected.

I am going to add a new log message to show what is being returned by Homey for the timezone value the app uses and I will let you know when that is ready.

[EricMuhren]

Yes, you're right. Timezone at this moment is GMT+2. Plus 1 in winter, plus 2 in summer.

Are insights working correct after you've implemented your changes?

[AdyRock]

I have published a test version that logs the timezone and language reported by Homey. That's the data I use in the time conversion, so would be interested to see what you have set.

Which insights?