How should I name custom holidays?

Use clear names with year or region tags, like “Company Shutdown 2026” or “Regional Founders Day (NYC).”

Do year boundaries matter?

Yes. Add the correct year and check for observance shifts when holidays fall on weekends.

Can I combine presets with custom holidays?

Yes. Start with a preset, then layer custom dates so weekends and all closures are excluded together.

No. It’s educational. Results depend on your inputs and assumptions and are not guaranteed.

Custom holidays

How to add custom holidays for next business day calculations

Q: Why add custom holidays for next business day calculations?

Company closures and regional observances aren’t always in presets, so adding them keeps the next business day accurate.

Adding custom holidays keeps “next business day” answers honest when company shutdowns or local observances aren’t in a preset. Give each one a clear name, choose the right year, and mix presets with your own dates in the business day calculator so weekends and every closure drop out together.

Published: January 7, 2026 · Updated: January 7, 2026 · By FinToolSuite Editorial

Add holidays and calculate

Choose the right holiday year | Next business day UK | Next business day FAQ

Disclaimer

For education, not legal, tax, payroll, or financial advice.
Examples stay simple so you can see the idea.
Results come from your inputs and assumptions; nothing here is guaranteed.
Holiday presets can miss local observances—give them a quick review.
See the Privacy Policy; don’t share personal data.

Quick answer: add missing dates

Start with the right preset, then add company closures and regional observances as custom holidays.
Use clear names with year and region tags to avoid confusion.
Check year boundaries and weekend observances so the date lands on the correct business day.

Naming and year tips

Good names help teams trust the calendar. Add region and year (e.g., “Company Shutdown 2026,” “Regional Founders Day (NYC)”). When a holiday lands on a weekend, check the observed date for the year you chose. A missed observance can keep the next business day a day earlier than policy allows.

Examples of date shifts (illustrative)

Company shutdown

Inputs: Start Friday, weekend Sat–Sun, preset on, custom shutdown Monday–Tuesday, exclusive mode.

Result: Next business day moves to Wednesday. Illustrative only.

Regional observance

Inputs: Start Thursday, weekend Sat–Sun, preset on, regional observance Friday added as custom holiday, exclusive mode.

Result: Next business day moves to Monday. Illustrative only.

How to add custom holidays in the tool

Use the finder

Open the next business day finder.
Select the correct holiday preset and year.
Add custom holidays for company closures and regional observances with clear names.
Choose inclusive or exclusive mode and confirm weekend pattern.
Run the calculation and share the result with the holiday list attached.

FAQ

Can I reuse custom holidays next year?

Copy them with the correct year and observance dates. Do not rely on last year’s list.

What if a holiday date shifts?

Update the date and name to match the new observance. Re-run the calculation and share the update.

Is this guaranteed?

No. It’s educational. Confirm with your calendars and policies.

Keep next business day answers accurate

Add custom holidays, set the right year, and share the result clearly.

Open the finder