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ST · 2026 holiday calendar
ST Public Holidays 2026
Review public holidays, other listed observances, categories, and estimated dates for ST in 2026. Then use the Bridge-Day Holiday Optimizer to find long weekends that fit your workweek and leave budget.
Plan with the Holiday Optimizer2026 holiday dates and categories
This calendar lists the dates and categories supplied for ST. A public holiday in a national calendar may not be a day off for every employer or region.
| Date | Holiday | Status | Type and certainty |
|---|---|---|---|
| New Year's Day | Public holiday | Holiday Official rule | |
| Day of King Amador | Public holiday | Holiday Official rule | |
| Day of King Amador (observed) | Public holiday | Holiday Official rule | |
| Martyrs' Day | Public holiday | Holiday Official rule | |
| Worker's Day | Public holiday | Holiday Official rule | |
| Independence Day | Public holiday | Holiday Official rule | |
| Independence Day (observed) | Public holiday | Holiday Official rule | |
| Armed Forces Day | Public holiday | Holiday Official rule | |
| Armed Forces Day (observed) | Public holiday | Holiday Official rule | |
| Agricultural Reform Day | Public holiday | Holiday Official rule | |
| São Tomé Day | Public holiday | Holiday Official rule | |
| Christmas Day | Public holiday | Holiday Official rule |
Plan a long weekend around ST holidays
Open the Bridge-Day Holiday Optimizer and choose ST and 2026. Add your workdays, leave budget, days-off target, and unavailable dates. The planner finds eligible breaks from public holidays and weekends; it cannot determine which dates your employer observes.
About this calendar data
Source attribution: Open-Source Python-Holidays Library. The calendar snapshot used to build this page is dated 2026-10-14. Holiday dates, names, categories, and regional rules can change; verify important dates with official local sources.
Bridge-Day marks estimated dates and separates public holidays from other listed observances. Non-public entries remain visible for context and do not count as days off in the optimizer by default.