How many months until December?
December starts on Tuesday, December 1, 2026.
December is in
21 days
That is 21 days in total, or 3 weeks.
Calculated as of November 10, 2026 (UTC). This page is rebuilt every night and updates to your local date when it loads.
Month-by-month countdown to December 1, 2026
What is left at the start of each month, and how many of the 21 days fall in it. The first row counts from today, November 10, 2026; the others from the 1st.
| Month | Left from | Months and days left | Days left | Days in this month |
|---|---|---|---|---|
| November 2026 | Today, Nov 10 | 21 days | 21 | 20 |
| December 2026 | Tue, Dec 1 | 0 days | 0 | 1 |
| Total days | 21 | |||
"Days in this month" counts the days after today up to and including December 1, 2026, so the column adds up to the total.
How the months are counted
We step forward whole calendar months from today, keeping the day of the month, and stop at the last step that does not pass December 1. The days from there are the leftover days. Today is November 10, 2026. One month from November 10, 2026 would be December 10, 2026, which is past December 1, 2026, so the answer is under a month: 21 days.
When the landing month is too short for the day, we use its last day: January 31 plus one month is February 28, or February 29 in a leap year. So January 31 to March 1 is 1 month and 1 day. Each step is measured from today, so January 31 plus two months is March 31. Months have 28 to 31 days, so a month here is a calendar count, not a fixed number of days.
The weeks figure is simply the total days divided by 7, with the remainder as days.
About December 2026
The countdown runs to December 1, the first day of the month. December 2026 has 31 days, from Tuesday, December 1, 2026 to Thursday, December 31.
Frequently asked questions
How many months until December?
21 days, counted from November 10, 2026 to Tuesday, December 1, 2026. That is 21 days in total, or 3 weeks.
How are the months and days counted?
We step forward whole calendar months from today, keeping the day of the month. One month from November 10, 2026 would be December 10, 2026, which is past December 1, 2026, so the answer is under a month: 21 days. If a month is too short for the day (say the 31st), we use its last day, so January 31 plus one month is February 28, or February 29 in a leap year.
How many weeks until December?
3 weeks (21 days divided by 7). See the weekly countdown for the date each whole week remains.
Why does the countdown stop at December 1?
"Months until December" counts to the first day of the month, when December starts. December 2026 has 31 days and begins on a Tuesday. Once December 1 passes, the countdown moves to December 1, 2027.
Months until other holidays and seasons
Thanksgiving
0 mo 16 d
November 26, 2026
Black Friday
0 mo 17 d
November 27, 2026
Winter
1 mo 11 d
December 21, 2026
Christmas
1 mo 15 d
December 25, 2026
New Year's Day
1 mo 22 d
January 1, 2027
Valentine's Day
3 mo 4 d
February 14, 2027
St. Patrick's Day
4 mo 7 d
March 17, 2027
Spring
4 mo 10 d
March 20, 2027