Mower's time gets changed

[Snordraacher]

Describe the issue

I noticed my mower behaving strangely a few days ago. Instead of mowing for an hour and 15 minutes it would mow, return to the base station after about 15 minutes. Start mowing again an hour later and returning after only 15 minutes again.

I pulled the log from my Mower and noticed hundreds of these lines in there:
#00008 - 28/08/2024 08:16:19 - [RTC] - Time changed via app/web
So the mower did what it thought was correct, because its time kept changing. For now i've disabled the Landroid pluging and now it mows 1h15min again once per day and all is well.

I can send you the logfile from my mower if that helps, i'd prefer to not post it here.

What version of Home Assistant Core has the issue?

2024.8.0

What was the last working version of Home Assistant Core?

No response

What version of the Landroid Cloud integration do you have installed

5.0.6

What type of installation are you running?

Home Assistant Container

Which make and model is the mower used for this integration?

Landroid M500

Diagnostics information (NOT log entries!)

Can't get log entries right now as it seems i have to upgrade to HACS 2.0 first for which i need some time.

Relevant log entries

None

Additional information

No response

[MTrab]

Sorry, nowhere in the integration are we setting any time settings on the mower - not even sure that's possible.
So no idea on how to fix this

[rderuiter-slashwhy]

As i'm no HomeAssistant wizard by any means: do you have any clues for me to debug this further?
All i know is what i've seen in the mower's log and that disabling the plugin prevented it from happening again. I don't know where else to look now.

[MTrab]

I'm sorry, but cannot help you with the debugging, as I have no idea what would be causing this

[MTrab]

Just a thought - could your Home Assistant server be configured for the wrong location and timezone?
The current time is a required part of the message when sending commands to the mower.

[Snordraacher]

That's a good idea! I looked in my HA logging and there seem to be 2 timezones active, 1 UTC and 1 that matches with my TZ.
HA seems to have multiple datetime values available for it's addons etc. It's possible that for the mower addon, the wrong time was used.

I've updated this now in HA but won't be able to test it since it isn't really mowing weather outside yet. Do you want to close this ticket, then i will retest in summer and create a new ticket if the issue persists?