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U.S. Date Difference Calculator: Calendar Days and Federal Workdays
Count calendar days, weekdays and federal workdays between two dates. Review endpoint and observed-holiday assumptions for a matter chronology.
The working answer
Count an interval by choosing the start and end dates, then deciding whether the start belongs in the count. The calculator shows calendar days, weekdays and weekdays after federal holidays separately. Standard observed federal dates can be selected for planning. Use the resulting interval alongside the governing rule or order when organizing a legal matter.
Count the days between two dates
Use this interval count for planning and chronology. A litigation deadline starts with the governing rule or order; open the Rule 6 calculator to compute a federal civil due date.
01 / PRACTICE NOTES
Choose the endpoints before counting.
An interval count answers how much time lies between two dates. It begins with a start, an end and an endpoint convention. The end date is included here; you choose whether the start date is included. Keep that convention with the number so a colleague can reproduce the result.
For a chronology, use the actual event dates from the record. A filing date, service date and entry date describe different events. Record which one you counted and keep the supporting document in the matter.
02 / PRACTICE NOTES
Read each of the three totals.
Calendar days count every date in the selected interval. Weekdays exclude Saturdays and Sundays. Federal workdays also exclude the statutory federal holidays and, when selected, their standard observed dates. A holiday falling on a weekend is excluded once from the workday total.
These totals serve different planning purposes. A chronology may use calendar days; a workload estimate may use weekdays. Federal civil periods stated in days generally count intermediate weekends and holidays under Rule 6. Use the federal deadline calculator for that final-day adjustment.
03 / PRACTICE NOTES
Connect the count to a reviewable matter schedule.
Save the event dates, endpoint convention and holiday setting with the calculation. A district calendar, state holiday or closure order supplies further scheduling facts to review when the assignment concerns court filing.
Use RuleX to keep the source record, chronology and next task together. Ask for the specific rule that controls the deadline, review the primary source and calendar the resulting date after checking the forum and order.
- Identify the two record events.
- Enter their actual dates.
- Choose the start-date convention.
- Review the observed-holiday setting.
- Retain the three totals and your assumptions with the matter.
Frequently asked questions
What is the difference between calendar days and federal workdays?
Calendar days include every date in the interval. Federal workdays exclude weekends and the federal holiday dates selected in the calculator. The tool displays both totals and its endpoint settings.
The authority behind the work
Primary and official sources
Sources reviewed for this edition. Open the authority alongside your matter.
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