The roots of many Finnish holidays lie in Christianity. Some of the holidays, such as Christmas and Easter, are public holidays. Many shops and offices are closed during these holidays.

Flag Days and Holidays in Finland – University Almanac Office

1.1. New Year’s day

6.1. Epiphany

March-April: Good Friday and Easter days

1.5. First of May

May: Ascension day and Pentecost

2nd Sunday in May: Mother’s Day

The Saturday between 20th and 26th of June: Midsummer day

The Saturday between 31st of October and 6th of November: All Saints’ Day

2nd Sunday in November: Father’s Day

6.12. Independence Day

24– 25.12.Christmas Eve and Christmas Day

26.12. Saint Stephen’s Day

Source: Finnish holidays (infofinland.fi)