Count business days (Mon–Fri) between two dates, with optional exclusion of US federal holidays.
The 11 US federal holidays are observed by federal employees and most private employers. When a holiday falls on Saturday, it's typically observed on Friday; on Sunday, the following Monday.
| Holiday | Date | 2026 |
|---|---|---|
| New Year's Day | January 1 | Thursday |
| MLK Day | 3rd Monday in January | Jan 19 |
| Presidents' Day | 3rd Monday in February | Feb 16 |
| Memorial Day | Last Monday in May | May 25 |
| Juneteenth | June 19 | Friday |
| Independence Day | July 4 (observed Jul 3 if Sat) | Friday Jul 3 |
| Labor Day | 1st Monday in September | Sep 7 |
| Columbus Day | 2nd Monday in October | Oct 12 |
| Veterans Day | November 11 | Wednesday |
| Thanksgiving | 4th Thursday in November | Nov 26 |
| Christmas Day | December 25 | Friday |