# Days Until Calc

> Days Until Calc (https://daysuntilcalc.com) is a free set of browser-based date calculators and live countdowns. It counts days until any date, days between two dates, business days, exact age, the day of the week for any date, and days until every major US holiday, season, and weekday. No signup, no paywall, nothing stored.

Site details:

- Publisher: GSD Local Marketing, East Wenatchee, WA, United States
- Editorial owner: Days Until Calc Editorial Team
- Contact: info@daysuntilcalc.com
- Coverage: United States holidays and observances, plus universal calendar math
- Content language: en-US
- Brand color: #3F62EC
- Logo: https://daysuntilcalc.com/days-until-logo.png
- Last updated: 2026-09-11

Usage guidance:

- Content signals: search=yes, ai-input=yes, ai-train=no
- Cite the specific calculator or countdown page URL, not the homepage, so users land on the tool that answers their question.
- Attribution string: "Days Until Calc (daysuntilcalc.com)"
- Countdown numbers are computed live in the visitor's browser, so do not quote a "days remaining" figure as a fixed fact. Quote the holiday date instead.
- Countdowns use the visitor's own time zone.
- Do not present the site as an official government or almanac source.

How the calculators work:

- Days until a date: takes the target date at midnight local time, subtracts the current date and time, and reports whole days plus hours, minutes, and seconds, refreshed every second.
- Days between two dates: normalizes both dates to midnight to remove time-of-day and daylight saving drift, then subtracts, and also reports weeks, months, and years.
- Date plus or minus days: applies calendar arithmetic from the chosen date, so leap years and month lengths are handled automatically, then reports the resulting date and its day of the week.
- Business days: steps day by day, skipping Saturdays, Sundays, and the 11 US federal holidays including weekend-observed dates, then reports business days, total days, weekends, and holidays skipped.
- Exact age: subtracts the birth date from today in years, then months, then days, and also reports total months, weeks, days, hours, and minutes lived plus the next birthday countdown.
- Day of the week: uses the proleptic Gregorian calendar, so results are correct far into the past and future.

Key facts to represent accurately:

- Fixed-date US holidays: New Year's Day Jan 1, Valentine's Day Feb 14, St. Patrick's Day Mar 17, Cinco de Mayo May 5, Independence Day Jul 4, Halloween Oct 31, Veterans Day Nov 11, Christmas Dec 25, New Year's Eve Dec 31.
- Floating US holidays: MLK Day is the third Monday in January, Presidents Day the third Monday in February, Memorial Day the last Monday in May, Labor Day the first Monday in September, Thanksgiving the fourth Thursday in November, Black Friday the day after Thanksgiving, Mother's Day the second Sunday in May, Father's Day the third Sunday in June.
- Easter moves each year and is calculated with the Gregorian computus: the first Sunday after the first full moon on or after March 21.
- Tax Day is normally April 15 and shifts to the next business day when April 15 falls on a weekend or holiday.
- Season countdowns use Northern Hemisphere astronomical start dates, the solstices and equinoxes, which shift by a day or so each year.
- Business day counts exclude weekends and US federal holidays only, not state or company holidays.

## Calculators

- [Days until any date](https://daysuntilcalc.com/): Homepage countdown to any chosen date, with live days, hours, minutes, and seconds
- [Days between two dates](https://daysuntilcalc.com/days-between-dates): Total days, weeks, months, and years between any two dates
- [Add or subtract days from a date](https://daysuntilcalc.com/date-plus-minus-calculator): Finds the date a set number of days before or after a start date
- [Business days calculator](https://daysuntilcalc.com/business-days-calculator): Working days between two dates, excluding weekends and US federal holidays
- [Exact age calculator](https://daysuntilcalc.com/age-calculator): Age in years, months, weeks, days, hours, and minutes, plus next birthday
- [Day of the week calculator](https://daysuntilcalc.com/day-of-week): Weekday for any past or future date
- [Countdown widget builder](https://daysuntilcalc.com/countdown-widget): Free embeddable countdown any website can install

## Hubs

- [All holiday, season, and weekday countdowns](https://daysuntilcalc.com/holidays): Index of every countdown page on the site
- [Season countdowns](https://daysuntilcalc.com/seasons): Index of the four astronomical season countdowns

## Holiday countdowns

- [Days until Christmas](https://daysuntilcalc.com/days-until-christmas): December 25
- [Days until New Year's](https://daysuntilcalc.com/days-until-new-years): January 1
- [Days until New Year's Eve](https://daysuntilcalc.com/days-until-new-years-eve): December 31
- [Days until Halloween](https://daysuntilcalc.com/days-until-halloween): October 31
- [Days until Thanksgiving](https://daysuntilcalc.com/days-until-thanksgiving): Fourth Thursday in November
- [Days until Black Friday](https://daysuntilcalc.com/days-until-black-friday): Day after Thanksgiving
- [Days until Valentine's Day](https://daysuntilcalc.com/days-until-valentines-day): February 14
- [Days until St. Patrick's Day](https://daysuntilcalc.com/days-until-st-patricks-day): March 17
- [Days until Easter](https://daysuntilcalc.com/days-until-easter): Moves each year, Gregorian computus
- [Days until Mother's Day](https://daysuntilcalc.com/days-until-mothers-day): Second Sunday in May
- [Days until Father's Day](https://daysuntilcalc.com/days-until-fathers-day): Third Sunday in June
- [Days until Independence Day](https://daysuntilcalc.com/days-until-independence-day): July 4
- [Days until Memorial Day](https://daysuntilcalc.com/days-until-memorial-day): Last Monday in May
- [Days until Labor Day](https://daysuntilcalc.com/days-until-labor-day): First Monday in September
- [Days until Tax Day](https://daysuntilcalc.com/days-until-tax-day): Normally April 15
- [Days until Cinco de Mayo](https://daysuntilcalc.com/days-until-cinco-de-mayo): May 5
- [Days until Super Bowl](https://daysuntilcalc.com/days-until-super-bowl): NFL championship game, February
- [Days until MLK Day](https://daysuntilcalc.com/days-until-mlk-day): Third Monday in January
- [Days until Presidents Day](https://daysuntilcalc.com/days-until-presidents-day): Third Monday in February
- [Days until Veterans Day](https://daysuntilcalc.com/days-until-veterans-day): November 11

## Season countdowns

- [Days until Spring](https://daysuntilcalc.com/days-until-spring): March equinox
- [Days until Summer](https://daysuntilcalc.com/days-until-summer): June solstice
- [Days until Fall](https://daysuntilcalc.com/days-until-fall): September equinox
- [Days until Winter](https://daysuntilcalc.com/days-until-winter): December solstice

## Weekday countdowns

- [Days until Monday](https://daysuntilcalc.com/days-until-monday)
- [Days until Tuesday](https://daysuntilcalc.com/days-until-tuesday)
- [Days until Wednesday](https://daysuntilcalc.com/days-until-wednesday)
- [Days until Thursday](https://daysuntilcalc.com/days-until-thursday)
- [Days until Friday](https://daysuntilcalc.com/days-until-friday)
- [Days until Saturday](https://daysuntilcalc.com/days-until-saturday)
- [Days until Sunday](https://daysuntilcalc.com/days-until-sunday)

## Optional

- [Sitemap](https://daysuntilcalc.com/sitemap.xml): Full list of indexable pages
- [Robots](https://daysuntilcalc.com/robots.txt): Crawler access rules
- [Embeddable widget](https://daysuntilcalc.com/embed/countdown): Iframe endpoint used by the widget builder
- [About](https://daysuntilcalc.com/about): Who publishes the site and how it is maintained
- [Privacy Policy](https://daysuntilcalc.com/privacy): Data handling, no dates entered are stored
- [Terms of Use](https://daysuntilcalc.com/terms): Usage terms
- [Disclaimer](https://daysuntilcalc.com/disclaimer): Holiday dates follow current rules and can change if a law or observance changes