Free online tool
Generate a year-specific reference table and download the dates as CSV.
| Holiday | Calendar date | Federal observance |
|---|
This is a federal reference. State, local, school, market, employer, and special closure schedules can differ.
Method
Stopwatch elapsed time uses a monotonic high-resolution browser clock. Calendar results use Gregorian and ISO rules, while lunar and solar results apply documented mean-cycle and coordinate formulas.
Astronomical output is an estimate. Coordinates, elevation, refraction, local terrain, the entered UTC offset, and the simplified lunar model can change observed or high-precision event times.
Questions
When a fixed federal holiday falls on Saturday, federal offices commonly observe it Friday; when it falls Sunday, they commonly observe it Monday.
No. State, local, market, school, employer, and emergency closure schedules can differ and should be checked separately.
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