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rish Cancer Society's Daffodil Day is on Friday 20 March 2026 throughout the country and in several locations on Saturday 21 March. On Daffodil Day, thousands of people across Ireland show their support by selling daffodil pins in their communities, hosting coffee mornings, donating and turning their towns, schools and workplaces yellow. By going all in against cancer, Daffodil Day is funding expert cancer nurses, ground-breaking cancer researchers and a range of vital services to help people navigate cancer.