Holy days of obligation are the days on which the faithful are obliged to go to Mass, unless excused for a serious reason such as illness or disability, the care of infants or others who are ill, or prevented through no fault of their own. Click on the headline above to see the list of holy days of obligation for Roman Catholics in the Diocese of Charlotte. If you are not sure about whether you may be excused from Mass, please speak to a priest: search our priest directory.