By law, the Finnish flag must be flown from public buildings on the following days:
- February 28, day of Kalevala; the occasion is also celebrated as the Day of Finnish Culture
- May 1, Labour Day
- Second Sunday in May, Mothers' Day
- June 4, birthday of C.G.E. Mannerheim, Marshal of Finland; the occasion is also celebrated as the Flag Day of the Finnish Defence Forces
- Saturday between 20 and 26 June, Midsummer Day; the occasion is also celebrated as the Day of the Finnish Flag
- December 6, Independence Day
- Days when Finland holds parliamentary and local elections, elections to the European Parliament, or a referendum
- The day the President of Finland is inaugurated
- February 5, birthday of poet J.L. Runeberg
- April 9, the day Mikael Agricola, the founder of the written Finnish language died and Elias Lönnrot, a collector of folklore was born; the occasion is also celebrated as the Day of the Finnish Language
- April 27, National War Veterans' Day
- May 12, birthday of the statesman J.V. Snellman
- July 6, birthday of the poet Eino Leino; the occasion is also a celebration of poetry and summer
- October 10, birthday of the writer Aleksis Kivi; the occasion is also celebrated as the Day of Finnish Literature
- October 24, Day of United Nations
- November 6, Day of Swedish Identity