Date Calculators

Your exact age, days between two dates, business-day deadlines and Tax Day. Every count runs in your browser from your own local date. Business days skip weekends and U.S. federal holidays.

Age CalculatorExact age in years, months, days.Days Between DatesCount days and business days.Add or Subtract DaysDate N days from now.Days UntilCount down to a date or a deadline.

Countdowns to money dates

People plan spending and saving around a few dates. Tax Day is one. The holiday stretch from Thanksgiving to New Year's is the other. Each countdown shows the next date, the rule that sets it and the dates for the next five years.

Days until ChristmasDays until New Year's DayDays until ThanksgivingDays until Black FridayDays until Cyber MondayDays until Tax Day

Updated: October 2, 2026 · Sources and methodology