14 Days Doesn't Mean What You Think It Means

A deadline that moves

Opposing counsel serves a motion on a Wednesday. The rule says you have 14 days to respond. So you count 14 days on your calendar, land on a Wednesday two weeks later, and mark it as your deadline.

Except that Wednesday is Presidents’ Day. Under FRCP 6(a), when the last day of a period falls on a legal holiday, the deadline rolls to the next day that isn’t a Saturday, Sunday, or holiday. So your actual deadline is Thursday. Unless Thursday is also a court-specific closure day, in which case it’s Friday.

Most litigators know the Saturday/Sunday rule intuitively. Fewer think about holidays. And almost nobody thinks about court-specific closures — the days that aren’t federal holidays but where the clerk’s office is shut anyway.

What FRCP 6(a) actually says

The 2009 amendments to Rule 6(a) simplified federal deadline counting. Before 2009, any period under 11 days excluded weekends and holidays from the count. Periods of 11 days or more included them. So “10 days” and “14 days” used completely different arithmetic. Drafters had to pick the number based on which counting method they wanted, not based on how many actual days they meant.

The current rule is cleaner, but still has layers:

1. Exclude the trigger day. Service happens on Monday, day 1 is Tuesday.
2. Count every day, including weekends and holidays. All periods now use calendar days for counting.
3. But check the last day. If the deadline lands on a Saturday, Sunday, or legal holiday, it extends to the next available day.

That third step is where people mess up. You counted correctly. Fourteen calendar days from Tuesday is a Monday. But that Monday is MLK Day. So the deadline is actually Tuesday. And if you filed on Monday assuming the clerk’s office was open, your filing might not get processed.

Three kinds of “days”

Federal practice throws around the word “days” like everyone agrees on what it means. They don’t. Here’s what you’re actually dealing with:

Calendar days are the simplest. Count every square on the calendar, weekends included. Most FRCP deadlines use calendar days for the count itself. “30 days after service” means 30 calendar days.

Business days skip weekends and holidays. When a standing order says “10 business days,” you skip Saturdays, Sundays, and every day the court is closed. Ten business days is usually 14 calendar days, but around Thanksgiving or Christmas it can stretch to 17 or 18.

Court days are weirder. They skip court holidays but not weekends. This comes up rarely in federal practice, but when it does, people get confused because it looks like business days but isn’t.

The trap is that the FRCP uses calendar days for counting but then applies a business-day-like rule to the endpoint. And standing orders can override any of it. A judge who says “opposition due within 10 business days” is replacing the entire FRCP 6(a) framework with a different counting method for that one deadline. You need to know which system you’re in before you start counting.

The holiday problem

Federal courts observe the standard federal holidays: New Year’s Day, MLK Day, Presidents’ Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, Christmas. That’s 11 days. Most litigators have these memorized.

What they don’t have memorized are the extras. Individual courts close for reasons that have nothing to do with the federal calendar. Weather closures. Local observances. The day after Thanksgiving, which isn’t a federal holiday but most courts treat as one. Some courts close for state holidays that overlap with their jurisdiction.

FRCP 6(a)(6) defines “legal holiday” to include any day declared a holiday by the state in which the court sits. That means a deadline in the Southern District of New York might be affected by New York State holidays that a deadline in the Central District of California isn’t. Same federal rule, different holiday calendar, different actual deadline.

And none of this is published in one place. You have to check the court’s website for their specific closure schedule, then factor that into your count. For a single deadline, it takes five minutes. Across a litigation practice handling cases in multiple districts, it’s hours of invisible work every month.

When standing orders change the math

Even if you nail the FRCP 6(a) calculation, you might still be wrong. Individual judges override default deadlines all the time.

A common example: the FRCP gives 14 days for an opposition brief. But standing orders frequently shorten or extend this. One judge in SDNY gives you 21 days. Another gives you 10 business days, which sounds similar to 14 calendar days but isn’t, because of the holiday wrinkle.

Reply briefs are worse. The FRCP default is 7 days, but standing orders routinely change this to 5 business days, or 10 calendar days, or “one week,” which sounds like it means 7 days but might mean 5 business days depending on who you ask.

The point is that you can’t compute a deadline without knowing three things: the trigger event, the counting method, and which holidays apply. Miss any one of them and you get the wrong date.

An example that breaks your brain

Opposing counsel serves a motion for summary judgment in EDNY on Friday, November 21, 2025. The standing order says opposition is due “14 days after service.” Calendar days, per FRCP 6(a).

Day 1 is Saturday, November 22. (Remember: exclude the trigger day, count every calendar day after.) Day 14 is Friday, December 5. That’s a regular business day, no holidays. Your deadline is December 5. Straightforward.

Now change one fact. Same motion, same judge, but served on Wednesday, November 19. Day 1 is Thursday, November 20. Day 14 is Wednesday, December 3. Still fine.

But what if the standing order says “10 business days” instead of “14 days”? Now you skip weekends. You skip Thanksgiving (November 27). You skip Black Friday if the court observes it. Your deadline might be December 4 or December 5 depending on whether that court closes the day after Thanksgiving. Same motion, same approximate timeframe, completely different deadline — and you can’t figure it out without checking the court’s holiday calendar.

We built a calculator for this

The Court Rules Deadline Calculator handles all three counting modes — calendar days, business days, and court days — for every federal district we cover. It pulls the actual holiday schedule for each court, so you’re not guessing about closures.

Pick a court. Pick a start date. Pick a day count and type. It gives you the date, shows you which holidays fell in the range, and lets you export the result to Google Calendar or download an .ics file for Outlook.

You can also browse court holiday schedules directly. Each district page shows the full closure calendar for the year, including both federal holidays and court-specific closures.

It’s free, no login required. Use it every time you compute a deadline, or just use it the one time a year when Presidents’ Day lands on the exact wrong Monday and saves you from filing a day late.

Related: Deadline Calculation in Federal Court is Harder Than You Think (developer guide) and Rule 83 and the Tower of Babel.