Calendar Categories APCO International Charity Conferences Holidays Monthly Meetings Tabletop Training Day Agenda Month September – December 2025 Sep – Dec 2025 Collapse All Expand All Sep 1 Mon 2025 Labor Day @ USA Tickets Sep 1 all-day This holiday is most commonly associated with a commemoration of the achievements of the labor movement 1st Monday in September Information provided by www.officeholidays.com Oct 13 Mon 2025 Columbus Day (Regional Holiday) @ USA Tickets Oct 13 all-day This national holiday commemorates the exact date when Christopher Columbus first set foot in the Americas 2nd Monday in October Information provided by www.officeholidays.com Nov 11 Tue 2025 Veterans’ Day (Regional Holiday) @ USA Tickets Nov 11 all-day Observed on November 11th to recall the end of World War I on that date in 1918 Information provided by www.officeholidays.com Nov 27 Thu 2025 Thanksgiving @ USA Tickets Nov 27 all-day Fourth Thursday in November. Traditionally, this holiday celebrates the giving of thanks for the autumn harvest 4th Thursday in November Information provided by www.officeholidays.com Dec 25 Thu 2025 Christmas Day @ USA Tickets Dec 25 all-day Christmas celebrates the Nativity of Jesus which according to tradition took place on December 25th 1 BC Information provided by www.officeholidays.com September – December 2025 Sep – Dec 2025
