In the context of an ordinal number, it refers to the position in a sequence.

Used to indicate the twenty-fifth day of the month or an event that occurs on that date.

महिने की पंचवां तारीख

English Usage: The meeting is scheduled for the twenty fifth of March.

Hindi Usage: बैठक मार्च की पंचवां तारीख को निर्धारित है।