Use the Date Match filter in any By Date or Day type flow to trigger a flow on a specific Day of the Month, Weekday Name or Exact Date.
When creating a By Date or Day type flow, the Date Match filter is selected by default.
Use the Select Date Function to choose which date or days to trigger the flow on.
Day of Month lets you select the date between 1 to 31 or even the last day of the month.
Weekday Name lets you select the day of the week between Sunday to Saturday.
Exact Date lets you select an exact date from a calendar.