As I’ve explained numerous times (in context, so these replies are admittedly hard-to-find), two dates (which are moments in time) happen on the same “day” (SORT OF) if a non-ambiguous text-wise comparison of the two dates (dropping time) is the same. For example:
date_1:formatted as text (format MM/DD/YYYY for example) is date_2:formatted as text (again formatted as MM/DD/YYYY)
… will be true if these dates happened on the same day… in whatever timezone the formatting happens in.
It is this last part that makes this “sort of”. In some timezones, those two moments in time may in fact happen on different calendar days and there is nothing you can do about that.
Generally speaking, the concept of " did these two things happen ‘today’ " is a question fraught with context. Did they happen “today” for WHOM? becomes the question. If the context is Current User and Current User’s timezone and both dates were created by that user in that timezone then this works as expected.
This also helps answer @anon65040322’s question, however. You can just decide on a timezone – typically, you would use UTC for this. So, if you do this comparison and pick UTC, @anon65040322, you have your answer. (But this is not generally what most Bubble programmer users would want.)