Checked it out and yeah seems accurate to me. Hmm. It's not like cloudberry doesn't work at all, works fine on Backblaze and Wasabi among other things i've tried; though a bit of a noob on using my own solution through MinIO.
Edit1:
You know it might be truenas server system time inconsistency. Tested with duplicati and got a similar error. I'll see what's going on.
Edit2:
Fixed my problem, didn't configure Truenas enough on proper timezones and NTP servers out of the box. My end. Thanks!