2025 Calendar Celebration Days. Check out this list of national days for 2025, with fun events and special days to enjoy all year long. Founded in 2017 by national day calendar® to celebrate florida as the 27th state to join the union.

Calendar for the whole year, calendar for any month, lunar calendar, printable calendar. This page contains a calendar of all 2025 observances instituted by the united nations and its agencies, and recognised in countries across the world.