2025 May Calendar Events. Plan ahead by checking out our list of may 2025 holidays and observances, and be sure to mark the official holidays and unofficial national days of celebration on. Birthday of guru rabindranath, world red cross day and world thalassemia day.

May 2025 calendar with holidays and celebrations of. Plan ahead by checking out our list of may 2025 holidays and observances, and be sure to mark the official holidays and unofficial national days of celebration on.