Matched to a named primary or official source for the stated period.
TRANSPARENT BY DESIGN
What Daymark knows—and what still needs checking
Every schedule has a boundary. This page shows the source, time range and confidence level behind Daymark’s dates so you can decide when a result is enough for planning and when to confirm it locally.
11Federal holidays tracked
50State guides for 2026
5Service categories compared
2026–2031Core calendar years
READ THE LABELS
Four levels of certainty
Daymark avoids presenting all future and local schedules as equally certain.
Calculated from a stable published recurrence or observance rule.
Useful forward guidance that the responsible organization has not confirmed.
No single nationwide answer exists; check the responsible local organization.
CURRENT REGISTER
Sources and coverage
Site review completed September 24, 2026.
| Dataset | Coverage | Status | Primary reference and limits |
|---|---|---|---|
| Federal holiday calendar dates | 2026–2050 | Rule-based | Office of Personnel Management. Actual dates follow published fixed-date and weekday rules. |
| Federal observed weekdays | 2026–2031 | Verified | Office of Personnel Management. Includes Friday and Monday weekend shifts. |
| State-specific entries | 50 states for 2026 9 states for 2027 | Verified | Official state calendars, statutes or agency pages are linked from every state guide. An entry does not imply every local office closes. |
| Bank and Federal Reserve guidance | 2026–2028 planning guidance | Verified | Federal Reserve schedules. Individual bank and branch policies can differ. |
| USPS operating guidance | 2026 confirmed 2027–2028 planning markers | Mixed / estimate | USPS newsroom events. Later-year dates require confirmation when USPS publishes its schedule. |
| NYSE closures and early closes | 2026–2028 | Verified | NYSE hours and calendars. Other venues and products can differ. |
| Public-school guidance | Nationwide planning guidance | Local verification | There is no single U.S. public-school calendar. Use the school guide to locate the district calendar. |
| Daylight saving time | 2026–2028 | Rule-based | Department of Transportation rules. Local exemptions are explained in the clock-change guide. |
| Full moon phase instants | 2026–2027 | Verified | U.S. Naval Observatory. UTC instants may fall on a different local date. |
| Annual calendars and printables | 2026–2031 | Rule-based | Built from the same federal and popular-date data used throughout the annual calendars. |
For audits and integrations, the same register is available as machine-readable JSON.
How updates are handled
- Annual refresh: rule-based dates and printable calendars are rolled forward.
- Schedule refresh: organization-specific closures are updated only after a primary schedule is available.
- Exception review: weekend rules, early closes and unusual one-off changes receive explicit notes.
- Correction trail: material corrections update the affected page’s review date and coverage entry.
What Daymark does not claim
- A federal holiday does not guarantee a private employer closes.
- A state entry does not guarantee every state or local agency closes.
- A likely-open result does not override emergency, weather or location-specific notices.
- A downloaded calendar is a snapshot, not an automatically refreshed source.
FOUND A PROBLEM?
Help keep the calendar accurate
Send the date, affected page and—when possible—a link to the official source. Daymark reviews corrections against primary material before changing a schedule.