Days until December 23
December 23 falls on a Wednesday in 2026 and a Thursday in 2027. The count runs from today’s date on your device to the next December 23; pick another date to count from it instead.
- Days until December 23
- 84
From September 30, 2026, there are 84 days until December 23 on Wednesday, December 23, 2026.
- Date
- Wednesday, December 23, 2026
- Day of the week
- Wednesday
- In weeks
- 12 weeks
Answer for the example date Wednesday, September 30, 2026. It changes to today's date when the page loads.
Days until December 23: 84. From September 30, 2026, there are 84 days until December 23 on Wednesday, December 23, 2026.
Where is December 23 on the calendar?
How to calculate
Counts the days from today, or any date you choose, to the next December 23, with its day of the week.
Example with the default inputs (Count from September 30, 2026) on the example date Wednesday, September 30, 2026: From September 30, 2026, there are 84 days until December 23 on Wednesday, December 23, 2026.
Method: Find the first December 23 on or after the start date, then count the days from the start date to it.
- December 23 comes every year, so the count is never more than 365 days.
- The start date itself is not counted: from the day before December 23, the count is 1; on December 23 itself, it is 0.
- Start dates from January 1, 1900 to December 31, 2400 work for the count to December 23, the range the date field accepts.
- Today is the date on your own device, so the count to December 23 changes at midnight where you are. Dates are whole calendar days, so a daylight-saving change never adds or loses a day.
Worked examples
Each example is checked against the calculator on every build.
- Count from 2027-12-23 gives Date 2027-12-23, Days until December 23 0.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2027-01-01 gives Date 2027-12-23, Days until December 23 356.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
- Count from 2027-12-24 gives Date 2028-12-23, Days until December 23 365.Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years)
Other questions people ask
What day of the week is December 23?
Wednesday, December 23, 2026; Thursday, December 23, 2027; Saturday, December 23, 2028. The weekday of December 23 moves on one day a year, or two when a February 29 falls between.
What day of the year is December 23?
December 23 is day 357 of a common year and day 358 of a leap year, such as 2028. Either way, 8 days of the year come after it.
What season is December 23 in?
In the Northern Hemisphere, December 23 is in winter in every year from 2026 to 2035; in the Southern Hemisphere, it is summer. Seasons here start on the astronomical equinoxes and solstices, dated in US Eastern Time.
Is December 23 a US federal holiday?
No. No US federal holiday falls on December 23. The next one in the calendar after December 23 is Christmas Day, which falls on December 25.
How are the days until December 23 counted?
From the start date to December 23, without counting the start date: from December 22 the count is 1, and on December 23 it is 0. The day after, it moves on to the next December 23: from December 24, 2026, that is December 23, 2027, 364 days away.