December 2027 Calendar with Holidays

By Sohail Manzoor · Updated

December 2027 runs from Wednesday, December 1, 2027 to Friday, December 31, 2027. Of its 23 weekdays, 21 are working days. The other two are federal days off: Friday, December 24, 2027 for Christmas Day and Friday, December 31, 2027 for New Year's Day. Christmas Day itself is on Saturday, December 25, so offices close on the Friday before. New Year's Day 2028 moves to the Friday in the same way.

One page with the holidays marked.

December 2027 calendar

December 2027

WkSunMonTueWedThuFriSat481234495678910115012131415161718511920212223242552262728293031

Weeks start on Sunday. The narrow first column is the ISO week number of each row's Monday, and federal holidays are shaded.

December 2027 in numbers

31Days
21Working days
2Federal holidays
4 Saturdays, 4 SundaysWeekends
48 to 52ISO weeks
335 to 365Days of the year

Holidays in December 2027

US federal holidayDay offFederal Reserve BanksStock market (NYSE)
Christmas Day (observed)Friday, December 24Open (Board closed)Closed
New Year's Day (observed)Friday, December 31Open (Board closed)Open

The day off for Christmas Day gives a long weekend from Friday, December 24 to Sunday, December 26, 2027. Banks follow a slightly different rule. Federal Reserve Banks stay open on Friday, December 24, 2027, since the holiday itself is on a Saturday. The day off for New Year's Day gives a long weekend from Friday, December 31 to Sunday, January 2, 2028. They stay open on Friday, December 31, 2027 too.

Other days to know

DayDate
Pearl Harbor Remembrance DayTuesday, December 7
WinterTuesday, December 21
Christmas EveFriday, December 24
HanukkahSaturday, December 25
KwanzaaSunday, December 26
New Year's EveFriday, December 31

Jewish holidays begin at sundown on the evening before the date shown.

Working days and paydays

At eight hours a day, the 21 working days add up to 168 hours.

Biweekly paydays depend on the Friday your pay cycle started. If it began on Friday, January 1, 2027, you are paid on December 3, 17 and 31, 2027. On the other cycle, a week later, payday is December 10 and 24, 2027. That makes December a three-paycheck month on the first cycle. Paydays on December 24 (Christmas Day) and December 31 (New Year's Day) fall on bank holidays, so the money may arrive the business day before. Semi-monthly pay on the 15th and the last day comes on Wednesday, December 15, 2027 and Thursday, December 30, 2027. December 31 is the New Year's Day holiday, and most employers then pay on the business day before.

Week numbers in December 2027

ISO weekMondaySunday
Week 48November 29, 2027December 5, 2027
Week 49December 6, 2027December 12, 2027
Week 50December 13, 2027December 19, 2027
Week 51December 20, 2027December 26, 2027
Week 52December 27, 2027January 2, 2028

December 2027 has days in 5 ISO weeks, from week 48 to week 52.

In Excel or Google Sheets, the formula =ISOWEEKNUM(DATE(2027,12,15)) gives week 50 for December 15. The US formula =WEEKNUM(DATE(2027,12,15)) gives week 51 for the same day, since it starts weeks on Sunday and counts from January 1.

Moon phases in December 2027

PhaseDateTime
First quarterMonday, December 612:22 AM ET
Full moon (Cold Moon)Monday, December 1311:09 AM ET
Last quarterMonday, December 204:11 AM ET
New moonMonday, December 273:12 PM ET

The full moon this month is the Cold Moon. It is full at 11:09 AM Eastern time on Monday, December 13, 2027. Look for the darkest skies around the new moon on Monday, December 27, 2027. Every full moon of the year, with its name, is on the full moon calendar 2027.

Clocks and seasons

The December solstice on Tuesday, December 21 starts astronomical winter in the Northern Hemisphere.

December 2027 questions

How many working days are in December 2027?

21. December 2027 has 23 weekdays, and Christmas Day on Friday, December 24, 2027 and New Year's Day on Friday, December 31, 2027 are federal holidays. State holidays and company closures are not taken out.

How many paydays are in December 2027?

With biweekly pay on Fridays, you get three (December 3, 17 and 31, 2027) or two (December 10 and 24, 2027), depending on your cycle. Semi-monthly pay always gives two.

Related pages

Page by Sohail Manzoor, Software Engineer and Full-Stack Developer. The ClockTotals date engine works out every date here, and automated tests check it against a plain day-by-day count.

Cite this page

APA: ClockTotals. (2026, October 26). December 2027 Calendar with Holidays. https://clocktotals.com/calendar/2027/december/

MLA: “December 2027 Calendar with Holidays.” ClockTotals, 26 Oct. 2026, clocktotals.com/calendar/2027/december/.

Link (HTML): <a href="https://clocktotals.com/calendar/2027/december/">December 2027 Calendar with Holidays</a>