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December 2025 Calendar

"Calendar by Month and Year" Calculator

Calendar

What does the December 2025 calendar look like?

Answer

has 31 days across 5 calendar weeks, days 335 to 365 of the year. The month starts on Monday, December 1 and ends on Wednesday, December 31.

December 2025 week by week

December 2025
WkSunMonTueWedThuFriSat
49123456
5078910111213
5114151617181920
5221222324252627
128293031

Quarter 4 of 2025 · ISO weeks 49, 50, 51, 52, 1

Holidays

See Also

  • Date Calculator - Add to or Subtract Days/Weeks/Months or Years from Today
  • Weeks and Days Ago From Today - Calculate what day was it Weeks and Days Ago From Today
  • Days Between Two Dates - Calculate the Difference Between Two Dates. How many days, months, and years are between two dates? From date to date calculator
  • Days until Date - How many days, weeks, months and years until a Date. How Many Days Until My Birthday? Countdown to date
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<a href="https://calculat.io/en/date/calendar/december--2025">December 2025 Calendar: Days and Holidays - Calculatio</a>Copy
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December 2025 Calendar: Days and Holidays. December 2025: 31 days across 5 calendar weeks, from Monday to Wednesday, with ISO week numbers and the holidays of the month.
https://calculat.io/en/date/calendar/december--2025/generated.jpgCopy

Months of 2025

MonthDays in monthStarts on
January 202531Wednesday
February 202528Saturday
March 202531Saturday
April 202530Tuesday
May 202531Thursday
June 202530Sunday
July 202531Tuesday
August 202531Friday
September 202530Monday
October 202531Wednesday
November 202530Saturday
December 202531Monday

About "Calendar by Month and Year" Calculator

This calendar lays the chosen month out week by week — weekdays, ISO 8601 week numbers, day-of-year numbers and the holidays that fall inside it. The "Year" option gathers all twelve months onto one page. For example, it can help you find out what does the December 2025 calendar look like? (The answer is: Monday, December 1 – Wednesday, December 31). Pick the month (e.g. "August") and the year (e.g. "2026"), then hit the 'Calculate' button.

"Calendar by Month and Year" Calculator

Calendar

FAQ

What does the December 2025 calendar look like?

December 2025 has 31 days across 5 calendar weeks, days 335 to 365 of the year. The month starts on Monday, December 1 and ends on Wednesday, December 31.

What day of the week does December 2025 start on?

The 1st falls on Monday, December 1, and the month ends on Wednesday, December 31.

How many calendar weeks does December 2025 span?

December 2025 spreads over 5 rows of the calendar and opens in ISO week 49. On the English grid every week starts on Sunday.

Which holidays fall in December 2025?

8 holidays fall in this period, among them Cyber Monday, Saint Nicholas Day, Hanukkah, Winter, Christmas Eve.