UBB.threads PHP Forum Software Community Forums UBB.threads 7 Bug Reports Non Bugs [NotaBug] Time offset ignored in recents island

This is UBB.threads 7.6.0 (2017) standard behavior. Timezone logic has not changed in any version since then.
https://www.ubbcentral.com/forums/ubbthreads.php/topics/260476/7-6-date-and-time-not-a-bug

Go to Control Panel > General > Date & Time
Make the corrections for your forum time.

Because the data is cached for forum speed, the Islands are built and cached based on the "Timezone For Guests." To enable caching, it is not built on individual user custom settings.

Example:

This is a screenshot of the time of your post, as I view it in UTC-07:00 (Los Angeles)


This is the "Recent Topics Island" as cached, with Timezone For Guests set to UTC-04:00 (New York)



Further reading here
https://www.ubbcentral.com/forums/u...nchronizing-database-guest-post-time-bug
and here
https://www.ubbcentral.com/forums/ubbthreads.php/topics/261933/calendar-function

As a side note;
Did you just upgrade from 7.5.x -> 7.7.2? Your server was in a + tz. It now its been set to a 0 timezone. UTC is 0.