Bizarre timestamp issue
Most likely GPS rollover issue.
Is there a fix for this?
It seems to have affected two trackers but several others seem unaffected. Can I expect them to go wrong too?
You should contact your device vendor. If it is rollover, you would need a firmware update.
When you buy cheap from china, that is something you cannot do!
Is there any way I could process the data to correct the time stamps, which are going forward in real time, but about seven years slow.
I thought there were no GPS rollovers between April 2019 and November 2038. These were working OK until December 2025.
The only thing that changed them was a new version of Traccar. However, if it was software on the server, why would it affect two devices and not all the many, many others?
Because it is your device firmware. There are many reports about this issue on many manufacturers from late last year.
Many of my trackers did receive a FOTA update from the manufacturer when the issue occured
Ah, thank you. I didn't see anything about that. Odd that only two of these are affected. Dozens of others, supposedly the same make and model, seem to be fine.
Well then you should check if the devices use the same firmware version and internal hardware.
The issue is more that your opinion is based on assumptions, not facts.
I don't have an opinion, based on assumptions or facts. I am asking a question.
All I have is facts. Two trackers show wrong dates. Other identical trackers don't.
This is not assumption, not opinion, just facts.
I am asking why this might be. How to fix it.
You appear to only have opinions, not facts.
If you have references to this issue online, why not offer URLs to be helpful?
Ok, then tell the facts about the working device and non working same device. What is the Firmware version for each device?
Checking the hardware would be difficult. They are hundreds of miles away.
Checking the firmware might be possible, if there is a software way to query it, but I don't know of one.
Sorry, you are playing a game, not helping.
So then where are the facts about the firmware version and hardware.
How would you rule out the issue without knowing these exact details?
Two trackers have started reporting incorrect time stamps.
They were working properly until some time in December 2025, but now they are reporting their dates to be wrong by several years. Here is an example of two lines from the log:
This is only happening with two trackers, although there are several other identical of the same make and model and using the same sort of sim card with the same contract.
The GPS fixes appear to be exactly correct, but you have to run a report for January 2019 to see the position on the map.
I have restarted one of them, which has made no difference.
My guess that it might be that the tracker is getting a wrong time stamp from the mobile network, but I guess would that to invalidate the position fix. Getting a wrong time stamp from the GPS would invalidate the fix, so I assume it can't be that.
So maybe the server is misreading the report and parsing the date incorrectly.
I am baffled by this.
Can anyone suggest what I might try to work out what it wrong, and how to fix it?