Business Days in December 2027
December 2027 has 21 business days under the US federal holiday calendar. December 2027 contains 2 US federal holidays. The month covers 31 calendar days, of which 8 fall on a weekend. That count drives invoice due dates, payroll cycles, project sprint planning, and any contract that defines deadlines as a number of working days.
Business Days
21
Calendar Days
31
Weekend Days
8
Holidays
2
Work Weeks
4.2
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 wknd | |||
5 wknd | 6 | 7 | 8 | 9 | 10 | 11 wknd |
12 wknd | 13 | 14 | 15 | 16 | 17 | 18 wknd |
19 wknd | 20 | 21 | 22 | 23 | 24 Christmas Day (observed) | 25 wknd |
26 wknd | 27 | 28 | 29 | 30 | 31 New Year's Day 2028 (observed) |
Holidays in December 2027
When December 25 falls on a Saturday, the federal observance shifts to Friday; when it falls on a Sunday, it shifts to Monday. Banks and US capital markets follow the observed-day closure. Year-end book-closing entries should be dated to the last regular business day, not the holiday.
Federal offices, the Federal Reserve, the bond market, and the NYSE all close on January 1. Payroll departments commonly shift the December 31 paycheck so direct deposits clear before the holiday, and ACH originations dated for January 1 settle on the next business day.
Day-of-Week Distribution
The count of each weekday in December 2027. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.
| Day | Count |
|---|---|
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 5 |
| Thursday | 5 |
| Friday | 5 |
| Saturday | 4 |
| Sunday | 4 |
Business Days in December 2027 by Country
Working-day counts vary by country because each country observes its own public holidays. The table below covers all eleven holiday calendars supported on this site.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 21 | Christmas Day (observed), New Year's Day 2028 (observed) |
| 🇬🇧United Kingdom | 21 | Christmas Day (observed), Boxing Day (observed) |
| 🇨🇦Canada | 21 | Christmas Day (observed), Boxing Day (observed) |
| 🇦🇺Australia | 21 | Christmas Day (observed), Boxing Day (observed) |
| 🇮🇳India | 23 | None |
| 🇵🇭Philippines | 20 | Feast of the Immaculate Conception, Rizal Day, New Year's Eve |
| 🇫🇷France | 23 | None |
| 🇩🇪Germany | 23 | None |
| 🇯🇵Japan | 23 | None |
| 🇲🇽Mexico | 23 | None |
| 🇸🇬Singapore | 23 | None |
Notable December Deadlines
December is the year-end close month. Public companies finalize Q4 reporting plans, accounts payable teams race to clear vendor invoices before the December 31 cutoff, and FSA participants spend down balances under the use-it-or-lose-it rule. Banks observe Christmas Day on December 25 and New Year's Eve typically runs a half-day session on the NYSE.
How December 2027 Compares
December 2026 had 22 business days, so December 2027 has 1 fewer working day year over year. On the surrounding months, November 2027 has 20 business days and January 2028 has 20. Looking forward, December 2028 will have 20 business days under the same federal holiday calendar.
Using This Calculator
A receivables analyst running a Net 30 portfolio uses the 21-business-day count in December 2027 to project cash collections by Friday of each week and to flag invoices whose due dates land on the holidays listed above. A project manager scoping a sprint that starts on the first business day of December uses the calendar grid to slot stand-ups, design reviews, and customer demos onto live working days rather than weekends. A specialty contractor billing time and materials uses the day-of-week distribution to see how many Mondays and Fridays fall in December 2027, which matters for crews who set installation appointments at the start and end of each week and skip Tuesday-to-Thursday for travel-heavy jobs.
For informational purposes only
This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.