Previous events The very first International Citizen Days took place back in 2019. Make sure to explore previous events inlcuding the organisations that took part here. International Citizen Days 2022 International Citizen Days 2022 took place in the heart of Copenhagen on 23 & 24 September for two days of endless inspiration on housing, job and social life. International Citizen Days 2021 International Citizen Days 2021 took place on 24 & 25 September as a part of Welcome September, a national welcome month for all international citizens in Denmark. International Citizen Days 2020 International Citizen Days 2020 took place on 14-16 & 19 September – this time as a virtual event as a result of the corona pandemic. International Citizen Day 2019 The very first International Citizen Day took place in the heart of Copenhagen on 21 September 2019 for a day of informative, inspiring and entertaining presentations.