Days From Today Calculator

DateMath takes today's date from your device and adds the days as calendar days, weekends and holidays included: tomorrow is 1 day from today, so today itself is day 0. A week is always 7 days, so a number of days that divides by 7 lands on today's weekday. The business-day date counts only Monday to Friday, skips the US federal holidays on their observed dates and doesn't count today, like Excel's WORKDAY.

• The Gregorian calendar. DateMath treats every date as a Gregorian date, with its leap-year rule: a year divisible by 4 is a leap year, except century years not divisible by 400, so 2000 had a February 29 and 2100 will not. Source: Gregorian calendar.
• US federal holidays. DateMath skips the 11 annual holidays of 5 U.S.C. 6103 on the days they are observed for federal employees, as the US Office of Personnel Management (OPM) lists them: a Saturday holiday on the Friday before, a Sunday holiday on the Monday after. Source: 5 U.S.C. 6103, OPM federal holidays.

DateMath's date math is tested against more than 100 cases worked out by hand. Every worked example and table on the site is computed with the same code the calculators run, so a page and its calculator can't disagree.

Type a number and the days from today calculator shows the date that many days from today, with its weekday, its day of the year and its ISO week. DateMath reads today's date from your device, so the answer is right for wherever you are, and it counts calendar days: weekends and holidays count like any other day.

Today is day 0. Tomorrow is 1 day from today, the same weekday next week is 7 days from today, and every 7 days bring you back to today's weekday. So for any number, divide by 7: the remainder is how many weekdays later the date falls. 30 days is 4 weeks, 2 days, so 30 days from a Monday is a Wednesday.

Under the date, the calculator shows the same number of US business days from today, skipping weekends and federal holidays, and lists the federal holidays that date skips. Switch the unit to weeks for 2, 6 or 12 weeks from today.

Choose “Ago” and the calculator counts back instead: the date a number of days ago from today, for questions such as when a 30-day window started or what the date was 90 days back. The rule is the same in reverse, so 30 days ago is 4 weeks, 2 days back and falls two weekdays earlier than today: from a Monday, 30 days ago was a Saturday.

Spans that end today, such as a return window that opened 14 days ago or a 90-day lookback, count today as the last day. If your rule counts both the first day and today, the first day is one day later than the date shown.

Five days from today is the weekday five days after today's, weekend included, so from a Monday it is a Saturday. Five business days from today skip the weekend: from a weekday, with no holiday in between, they land on the same weekday next week. Type 5 in the calculator for both dates.

A business day is a weekday that is not a federal holiday. DateMath counts business days from tomorrow, the way Excel's WORKDAY does, skips the 11 annual US federal holidays on their observed dates, and shows the result next to the calendar date. 10 business days from Friday, January 15, 2027 is Monday, February 1, 2027, because Martin Luther King Jr. Day on January 18, 2027 is skipped; 10 calendar days is Monday, January 25, 2027.

To count the business days between two dates, add business days to another date, or count weekdays only, use the business days calculator.

Months are 28 to 31 days long, so a number of days and the same number of “30-day months” drift apart. When a rule says days, count days here; when it says months, add months with the date calculator, which keeps the day number.

The numbers people look up most have a page of their own, each with today's answer at the top, the date that many days ago and business days from today, and its own tables. The weekday columns hold for any year: read them from a Monday, or move them along by your own weekday.

A number divisible by 7 (7, 14, 21, 28, 35, 56, 63, 84) always lands on today's weekday.