New Year's Day
Observed January 1 · Friday
Fri–Sun off Print month calendarFederal + popular · Countdown · Printable
2100 U.S. Holidays
Federal and popular US holidays for 2100 — exact dates, weekdays, and days until each observance.
23 holidays
11 federal
~250 business days
9 long weekends
Next: Labor Day
—Days
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Download & print
Add federal holidays to your calendar app or print an observed-date reference sheet.
Compare business days
Side-by-side workday totals for planning across calendar years.
2099
250 business days
vs
2100
250 business days
2100 has 0 more business days than 2099.
US Business Days Calculator
Count workdays between two dates or add/subtract business days. Weekends and federal observed holidays excluded by default.
Long Weekend Planner
Federal holidays that stretch into a 3+ day break when combined with adjacent weekends.
Birthday of Martin Luther King, Jr.
Observed January 18 · Monday
Sat–Mon off Print month calendarWashington's Birthday
Observed February 15 · Monday
Sat–Mon off Print month calendarMemorial Day
Observed May 24 · Monday
Sat–Mon off Print month calendarJuneteenth
Observed June 18 · Friday
Fri–Sun off Print month calendarIndependence Day
Observed July 5 · Monday
Sat–Mon off Print month calendarLabor Day
Observed September 6 · Monday
Sat–Mon off Print month calendarColumbus Day
Observed October 11 · Monday
Sat–Mon off Print month calendarChristmas Day
Observed December 24 · Friday
Fri–Sun off Print month calendarUpcoming holidays in 2100
Full holiday list →2100 holiday calendar
| Legal | Observed | Day | Holiday | Countdown | Long wknd |
|---|---|---|---|---|---|
| January 1 | January 1 | Friday | New Year's Day | 26816 days | Fri–Sun |
| January 18 | January 18 | Monday | Birthday of Martin Luther King, Jr. | 26833 days | Sat–Mon |
| February 2 | — | Tuesday | Groundhog Day | 26848 days | — |
| February 14 | — | Sunday | Valentine's Day | 26860 days | — |
| February 15 | February 15 | Monday | Washington's Birthday | 26861 days | Sat–Mon |
| March 17 | — | Wednesday | St. Patrick's Day | 26891 days | — |
| March 28 | — | Sunday | Easter | 26902 days | — |
| April 22 | — | Thursday | Earth Day | 26927 days | — |
| May 5 | — | Wednesday | Cinco de Mayo | 26940 days | — |
| May 9 | — | Sunday | Mother's Day | 26944 days | — |
| May 24 | May 24 | Monday | Memorial Day | 26959 days | Sat–Mon |
| June 14 | — | Monday | Flag Day | 26980 days | — |
| June 19 | June 18 | Friday | Juneteenth | 26984 days | Fri–Sun |
| June 20 | — | Sunday | Father's Day | 26986 days | — |
| July 4 | July 5 | Monday | Independence Day | 27001 days | Sat–Mon |
| September 6 | September 6 | Monday | Labor Day | 27064 days | Sat–Mon |
| October 11 | October 11 | Monday | Columbus Day | 27099 days | Sat–Mon |
| October 31 | — | Sunday | Halloween | 27119 days | — |
| November 11 | November 11 | Thursday | Veterans Day | 27130 days | — |
| November 25 | November 25 | Thursday | Thanksgiving | 27144 days | — |
| November 26 | — | Friday | Black Friday | 27145 days | — |
| November 29 | — | Monday | Cyber Monday | 27148 days | — |
| December 25 | December 24 | Friday | Christmas Day | 27173 days | Fri–Sun |
Holidays by month
Jump to a month’s holiday list or open the matching printable calendar.
January
2 holidays
- New Year's Day
- Birthday of Martin Luther King, Jr.
February
3 holidays
- Groundhog Day
- Valentine's Day
- Washington's Birthday
March
2 holidays
- St. Patrick's Day
- Easter
April
1 holiday
- Earth Day
May
3 holidays
- Cinco de Mayo
- Mother's Day
- Memorial Day
June
3 holidays
- Flag Day
- Juneteenth
- Father's Day
July
1 holiday
- Independence Day
August
0 holidays
Print August calendarSeptember
1 holiday
- Labor Day
October
2 holidays
- Columbus Day
- Halloween
November
4 holidays
- Veterans Day
- Thanksgiving
- Black Friday
- Cyber Monday
December
1 holiday
- Christmas Day
2100 US holidays — legal and observed dates
Federal holidays in the United States sometimes fall on a Saturday or Sunday. When that happens, the government moves observance to the nearest weekday so most federal workers receive a day off. This 2100 table shows both the legal calendar date and the observed date federal offices use. When the two match, only one date appears.
Popular cultural days such as Valentine's Day, Easter, or Halloween appear here for planning convenience but are not federal holidays unless the table labels them as such. Banks and post offices typically follow federal observance; private employers set their own paid holiday schedules and may include additional days.
Federal vs cultural observances
Eleven federal holidays are established by law, including fixed dates like Independence Day and floating rules like Thanksgiving. Cultural observances — religious feasts, awareness days, and seasonal celebrations — help families and communities coordinate events even when no office closes. The distinction matters for payroll, shipping cutoffs, and school calendars.
Each holiday row links to a detail page with history, recurrence rules, and the next ten occurrence dates. That makes it easy to check whether a future year moves observance because of a weekend.
Business days calculator
The calculator on this page counts workdays between two dates. Exclude weekends and optionally skip observed federal holidays in 2100. The result shows calendar days, weekend days, and any federal holidays inside your range. That supports project deadlines, shipping estimates, and payroll accrual without building a spreadsheet from scratch.
Long weekend planner
A long weekend forms when a federal holiday sits next to a Saturday or Sunday, giving three or more consecutive days off. The planner lists those stretches for 2100 so travel and maintenance can be booked early. Memorial Day, Labor Day, and Thanksgiving often create these blocks; fixed-date holidays that land midweek do not extend the weekend unless you take extra leave.
Printable calendars with matching dates
Federal holidays can be added to any monthly calendar or the 2100 yearly calendar. Print a PDF that uses the same observed dates shown in the table above, so wall calendars and office handouts stay aligned with this list.
Frequently asked questions
What is an observed federal holiday date?
The legal date is the day named in law, such as July 4. If it falls on Saturday, federal offices usually observe Friday; if Sunday, they observe Monday. The table shows both when they differ. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.
How does the business days calculator work?
Pick a start and end date. The tool counts weekdays in the range and can exclude observed federal holidays in 2100. Results include total calendar days and weekend days for context. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.
What counts as a long weekend on this page?
A federal holiday next to a Saturday or Sunday that gives at least three consecutive days off. The planner lists those stretches for 2100 so you can plan travel early. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.
Are all holidays on this list federal holidays?
No. Federal holidays are labeled clearly. Cultural days like Halloween or Valentine's Day appear for planning but are not federal holidays and do not close government offices by default. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.
Do private employers follow observed dates?
Federal observance rules apply to federal workers and many banks. Private companies choose their own paid holiday calendar; use this list as a reference, not a payroll mandate. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.
Can I add these holidays to a printable calendar?
Yes. Open any monthly or yearly template, enable federal holidays, and print. The same observed dates from this 2100 table appear on your PDF. Always confirm edge cases against primary sources when results affect legal, medical, or financial decisions.