Whitsun 1. The Sunday of the feast of Whitsun or Pentecost in the Christian liturgical year, observed 7 weeks after Easter 2. The second Sunday of Easter (Octave of Easter, White Sunday or Whit Sunday) or Quasimodo Sunday[1] 3. One of the Scottish quarter days, always falling on 15 May http://en.wikipedia.org/wiki/Whitsunday In Scotland: 26 May (Julian Calendar). This translated to 15 May in the Gregorian Calendar at the time of the adoption of the new calendar (1752). http://en.wikipedia.org/wiki/Scottish_Term_Day Pentecost is a Church festival celebrated to mark the advent of the Holy Spirit and the founding of the Church. The Christian Pentecost is also associated with the awakening of nature at Whitsun. It falls 50 days after Easter, i.e. at the earliest on 11 May and at the latest on 14 June. http://www.denmark.dk/en/menu/AboutDenmark/TheDanes/TraditionsFood/TraditionsInDenmarkAllYearRound/TheAnnualFestivalsAndRedLetterDaysInDenmark/