Fair rented days - how to calculate!

Hi there -

 

I have a property that I converted to a rental at the beginning of the year:

  • Lived in the property: Jan and Feb (59 days)
  • Converted to a rental/made available for rent: Beginning Mar 1
  • Got a tenant/received rent: Beginning Apr 1 (through end of year)

I know personal use days is 0, since I did not use the property after it was available for rent. But what do I put for Fair rented days? 275 days (beginning Apr 1) or 306 days (beginning Mar 1)?

 

Thanks so much for your help!