Wrapped Daily Breakdown seems to be in UTC

In my wrapped, it claims that I was most active Sundays at 2am and have hundreds of messages sent at 4am / 5am. I am in US central time and I know that most of my activity was in the evening (I don’t stay up all night). Seems likely that my actual peak usage time would be 8pm / 9pm CST, which strongly suggests that you’re aggregating time in UTC without localizing.