# Days until December 22

Counts the days from today, or any date you choose, to the next December 22, with its day of the week.

- Page: https://www.acalculator.org/days/days-until-december-22
- JSON spec: https://www.acalculator.org/days/days-until-december-22.json
- Version: 3a612b99f4a4

## Default answer

Example with the default inputs (Count from September 30, 2026) on the example date Wednesday, September 30, 2026: From September 30, 2026, there are 83 days until December 22 on Tuesday, December 22, 2026.

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| from | Count from | The date to count from. Today, unless you change it. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| days | Days until December 22 | Whole days from the start date to the next December 22; 0 on the day itself. |
| date | Date | The next December 22 on or after the start date. |
| weekday | Day of the week | The weekday of that date. |
| weeks | In weeks | The same number of days in weeks and days. |

## Method

Find the first December 22 on or after the start date, then count the days from the start date to it.

## Assumptions

- December 22 comes every year, so the count is never more than 365 days.
- The start date itself is not counted: from the day before December 22, the count is 1; on December 22 itself, it is 0.
- Start dates from January 1, 1900 to December 31, 2400 work for the count to December 22, the range the date field accepts.
- Today is the date on your own device, so the count to December 22 changes at midnight where you are. Dates are whole calendar days, so a daylight-saving change never adds or loses a day.

## Worked examples

1. from = 2027-12-22 gives date = 2027-12-22, days = 0. Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years).
2. from = 2027-01-01 gives date = 2027-12-22, days = 355. Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years).
3. from = 2027-12-23 gives date = 2028-12-22, days = 365. Source: U.S. Naval Observatory, Leap Years: the Gregorian leap year rule (https://aa.usno.navy.mil/faq/leap_years).

## FAQ

### What day of the week is December 22?

Tuesday, December 22, 2026; Wednesday, December 22, 2027; Friday, December 22, 2028. The weekday of December 22 moves on one day a year, or two when a February 29 falls between.

### What day of the year is December 22?

December 22 is day 356 of a common year and day 357 of a leap year, such as 2028. Either way, 9 days of the year come after it.

### What season is December 22 in?

In the Northern Hemisphere, December 22 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 22 a US federal holiday?

No. No US federal holiday falls on December 22. The next one in the calendar after December 22 is Christmas Day, which falls on December 25.

### How are the days until December 22 counted?

From the start date to December 22, without counting the start date: from December 21 the count is 1, and on December 22 it is 0. The day after, it moves on to the next December 22: from December 23, 2026, that is December 22, 2027, 364 days away.

## Sources

- 5 U.S.C. 6103 (federal holidays; weekend rule in 6103(b) and Executive Order 11582). Checked against OPM holiday schedules.
- Equinoxes and solstices: Jean Meeus, Astronomical Algorithms (2nd ed., 1998), chapter 27, checked against the US Naval Observatory.