Sao Tome and Principeの公的祝日 5月 2026

5月 2026 in Sao Tome and Principe runs 31 calendar days, Northern-hemisphere spring and Southern-hemisphere autumn. Sao Tome and Principe observes one public holiday in 5月 2026: Labour Day. One of those — Labour Day — falls on a weekday and reduces the working-day count by one. That leaves 20 working days for Sao Tome and Principe businesses, payroll cycles, and project schedules in 5月 2026. May centres on May Day / Labour Day, observed in over 80 countries on the 1st, and on Memorial Day in the United States at the end of the month. For broader context, see the full 2026 calendar for Sao Tome and Principe or the global view of holidays observed in 5月 2026 across all 190 countries we cover.