Flexy Datalogging Timestamp increases on its own

Hi,
I have a Flexy202 with several tags set up with historical logging with deadband -1 and interval 30s, but it seems that the timestamp would increase on its own as time goes on, please see the below example that was extracted from the historical logging:

If the logging was setup during 00:00:00 for example, shouldn’t every time stamp be on the 0th and 30th seconds? i see this across 80+ Flexys that i have installed on site

Regards,
Jeen

The timestamps appear to be every 30 seconds like you configured for. It doesn’t necessarily start at :00. Also, there may be an extra second every now and again to account for overhead for logging the data.