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In a synthetic report, which records move into a different day when the display time zone changes?
Which time zone should define the reporting period, and where was that rule explained?
How should records exactly at midnight be described in the boundary explanation?

Author notes / illustrative keys where applicable:
1. Ask readers to identify the affected fabricated records rather than rate the date filter. This separates a change in the displayed calendar day from a change in which timestamps belong to the period.
2. Surface the assumed reporting zone and the place readers expected to find it. The report owner can clarify an undocumented convention without claiming the survey establishes backend behavior.
3. Collect the wording needed for timestamps at the day boundary, then compare it with the documented rule. An explicit midnight example helps expose ambiguity that ordinary daytime records hide.