Eleven holidays, set by statute
The US federal government recognizes eleven holidays each year, set by 5 U.S.C. § 6103 and administered by the Office of Personnel Management. They are New Year's Day, Martin Luther King Jr. Day, Presidents' Day (officially Washington's Birthday), Memorial Day, Juneteenth (added in 2021), Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and Christmas Day. PrintCalendars shades all eleven on every printable layout from 2020 onward (Juneteenth begins in 2021).
Fixed-date vs floating
Six of the eleven holidays have fixed dates: New Year's Day (January 1), Juneteenth (June 19), Independence Day (July 4), Veterans Day (November 11), and Christmas Day (December 25). Five are floating: MLK Day (third Monday of January), Presidents' Day (third Monday of February), Memorial Day (last Monday of May), Labor Day (first Monday of September), Columbus Day (second Monday of October), and Thanksgiving Day (fourth Thursday of November). The floating holidays move within a week-long window each year; the fixed holidays may be observed on a different day if the statutory date lands on a weekend.
The weekend-shift rule
When a fixed-date federal holiday falls on a Saturday, the federal observance shifts to the preceding Friday. When it falls on a Sunday, the observance shifts to the following Monday. PrintCalendars shows both the statutory date and the federal observance date when they differ. Schools usually follow the federal observance, but a few districts close on the statutory date instead — confirm with your district when the two differ.
What schools actually close for
Almost every K-12 district closes for Labor Day, Thanksgiving Day (and usually the Wednesday and Friday around it), Christmas Day (inside winter break), New Year's Day (inside winter break), MLK Day, Memorial Day, and Independence Day (during summer recess). Veterans Day and Columbus Day are closed in most districts but not all. Juneteenth falls during summer recess for most schools and is observed only by year-round programs.
Beyond the federal calendar
Many schools also close for state holidays (varies by state), religious holidays (varies by community), and locally negotiated days like the day after Thanksgiving or Good Friday. PrintCalendars marks the federal calendar as a base; your district's published calendar is the authoritative source for local closures.