"If conflicting dates are stored in multiple places on the source page, preference should be given to the time that is visible to the ordinary user who views the page in a browser."
you should use a date that the user sees at the first look.
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second: in the checklist:
https://instantview.telegram.org/checklist#6-1-2-date-and-time
"If conflicting dates are stored in multiple places on the source page, preference should be given to the time that is visible to the ordinary user who views the page in a browser."
you should use a date that the user sees at the first look.