Some good features, but breaks date/time

It looked as if it could be a good solution for us. But I found this was the culprit for all my date/time issues. Post dates were incorrect. Each calendar event was off by random hours or days.

Wordpress health status listed an error related to a particular function call, but now I cannot recall what it was. I disabled one plugin at a time and this was the only one that resolved the issue when deactivated.