Days until December
December 2026 starts on Tuesday, December 1, 2026. The count starts from today’s date; pick another date to count from it instead.
- Days until December
- 62
From September 30, 2026, there are 62 days until December on Tuesday, December 1, 2026.
- Date
- Tuesday, December 1, 2026
- Day of the week
- Tuesday
- In weeks
- 8 weeks and 6 days
- In months and days
- 2 months, 1 day
Answer for the example date Wednesday, September 30, 2026. It changes to today's date when the page loads.
Days until December: 62. From September 30, 2026, there are 62 days until December on Tuesday, December 1, 2026.
Where is December on the calendar?
How to calculate
Counts the days from today, or any date you choose, to December 1, the first day of the next December, with its weekday and the time in weeks and months.
Example with the default inputs (Count from September 30, 2026) on the example date Wednesday, September 30, 2026: From September 30, 2026, there are 62 days until December on Tuesday, December 1, 2026.
Method: Find the first December 1 on or after the start date, then count the days from the start date to it.
- The count is to December 1, the first day of the month. During December, it counts to December 1 of the next year.
- The start date itself is not counted: from the day before, the count is 1; on the day itself, it is 0.
- Dates are calendar days with no time of day, so a time zone or a daylight-saving change never adds or loses a day.
- Start dates from January 1, 1900 to December 31, 2400 work.
Worked examples
Each example is checked against the calculator on every build.
- Count from 2026-09-28 gives Date 2026-12-01, Days until December 64, Day of the week Tuesday.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2026-12-01 gives Date 2026-12-01, Days until December 0, Day of the week Tuesday.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2026-12-02 gives Date 2027-12-01, Days until December 364, Day of the week Wednesday.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2028-02-29 gives Date 2028-12-01, Days until December 276, Day of the week Friday.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
Other questions people ask
When does December 2026 start?
December 2026 starts on Tuesday, December 1, 2026 and ends on Thursday, December 31, 2026.
How many days are in December?
December always has 31 days, so December 2026 runs from Tuesday, December 1, 2026 to Thursday, December 31, 2026.
What day of the week does December 2027 start on?
December 2027 starts on a Wednesday: Wednesday, December 1, 2027.
What if it is already December?
The page counts to the first day of the month. On December 1 the count is 0; from December 2 to December 31 it counts to December 1 of the next year. From Wednesday, December 2, 2026, that is Wednesday, December 1, 2027.
How are the days until December counted?
From the start date (today, unless you change it) to December 1, without counting the start date: from the last day of the month before, the count is 1. The weeks and months shown are the same span, in whole weeks and in whole months plus days.