This bug appears in other situations as well, but this example is for profiles, and I suspect only shows for when there is a wide gap in timezones. Eg, I am in utc+13 (New Zealand) and so strike this anomaly often.

I very commonly see this too (Sydney)
Hi there
This user…
https://www.inaturalist.org/people/omarjimenez2
…shows to have joined on Dec 15, 2019, and last active on Dec 14, 2019.
Any thoughts?
Thanks!
Cheryl

Probably. I’ll ask our developers tomorrow.
Looks like the Date Joined date is dependent on the viewer’s time zone. I can make an issue for it.
Update: fix was released for this.
Looks good from the other side of the date line!
https://inaturalist.nz/people/1462755

