Shetland Flag Day is observed in Shetland, Scotland, every June 21, coinciding with the longest day of the year. This celebration does not honor a patron saint or a specific historical event but serves to promote Shetland's national pride and identity. The day features the flying of the Shetland flag, which symbolizes the archipelago's historical and cultural connections to both Norway and Scotland. The flag, designed in 1969 by Roy Grønneberg and Bill Adams, features a white Nordic cross on an azure background, reflecting Shetland's 500 years under Norwegian rule and the colors of the Scottish flag. Official recognition of the Shetland flag was granted in 2005, and in 2007, the Shetland Islands Council established June 21 as Shetland Flag Day, allowing the community to celebrate their unique heritage.