That is very unusual - can you confirm what version you're running, cloud or self-hosted, and if the behaviour is the same across a different app as well as in preview or edit mode?
I’m on 3.271.0.
Whether it’s an old app or a newly created one—date range picker or date picker—anything date-related isn’t working. Same issue in both edit mode and preview mode, and across different browsers.
Actually, I tested on Chrome and Brave, but it worked fine in Edge.
Both Chrome and Brave were set to a different timezone than my local machine, and when I switched them to match the local timezone, the date picker started working correctly.
Ah, nice detective work! That's interesting to know, let me see if there's a way to repeat the behaviour and see if there's a bug or better way for the component to handle the situation