Worldwide Cyanotype Day Event Details This event is running from 23 September 2017 until 30 September 2023. It is next occurring on 24/09/2022 11:00 am Categories: Cyanotype Tags: CalendarEvent, WCD Upcoming Dates: 24/09/2022 11:00 am – 01/10/2022 4:00 pm30/09/2023 11:00 am – 07/10/2023 4:00 pm Join us to celebrate the cyanotype process. Last Saturday in September each year.