In 2016, the Summer Solstice will be celebrated on the 20th of June in the Northern Hemisphere. The Summer Solstice occurs when the axial tilt of the earth is at its closest to the sun. It has more hours of daylight than any other time of the year, making it the longest day of the year. People across the world will mark the event in various ways. While different ancient cultures had different traditions, some of the most time-honoured and world-famous were those undertaken by the Celtic people. The Summer Solstice was one of eight sacred Celtic days where the Celts would take time to celebrate through a variety of customs. They used ‘Natural Time’ taking their lead from the Solstices and Equinoxes to determine the seasons. This is in contrast to the Gregorian calendar that has been adopted today.