Offices and Shops are closed all Sundays in Italy. In major tourist areas especially during high season many shops are now open. Here is the list of National Statutory Holidays:

JANUARY 1: New Year's Day
JANUARY 6: Epiphany (Easter Sunday, Easter Monday)
APRIL 25: Liberation Day
MAY 1: Labor Day
AUGUST 15: Assumption of the Virgin
NOVEMBER 1: All Saints Day
DECEMBER 8: Day of Immaculate Conception
DECEMBER 25: Christmas Day
DECEMBER 26: Santo Stefano (Boxing Day)