Every date calculator you need, in one place
Fast, free, single-purpose calculators for work, legal, and everyday date questions. No sign-up, no data leaves your browser.
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Work & Career
Notice periods, probation, contracts, and severance.
PopularNotice Period CalculatorWork out your exact last working day from a notice period.Probation End Date CalculatorFind the exact date your probation period ends.Last Working Day CalculatorCalculate your last working day after resigning.Work Anniversary CalculatorFind your next work anniversary and years of service.Contract End Date CalculatorCalculate when a fixed-term contract ends.Severance Period CalculatorEstimate your severance weeks and coverage end date.Parental Leave CalculatorFind your return-to-work date after parental leave.Biweekly Pay Period CalculatorFind your upcoming biweekly pay dates.NewNext Payday CalculatorFind your next payday for weekly, biweekly, semimonthly, or monthly pay.
Legal, Finance & Admin
Returns, warranties, loans, leases, and legal deadlines.
Return Deadline CalculatorFind the last day you can return a purchase.Warranty Expiry CalculatorCalculate when a product warranty expires.Cooling-Off Period CalculatorFind the deadline to cancel an agreement.Subscription Renewal CalculatorCalculate your next subscription renewal date.Lease End Date CalculatorFind your lease end date and notice-to-vacate deadline.Loan Maturity Date CalculatorFind the maturity date of a fixed-term loan.Interest Accrual CalculatorCalculate simple interest accrued between two dates.Vesting Date CalculatorFind your cliff date, full vesting date, and vested percentage.Tax Deadline CountdownLive countdown to the tax filing deadline.Statute of Limitations CalculatorFind the deadline to file a claim after an incident.Free Trial End Date CalculatorFind when a free trial ends and when to cancel.Credit Card Payment Due Date CalculatorFind your credit card payment due date.Security Deposit Return Deadline CalculatorFind the deadline for a landlord to return a deposit.Vehicle Registration Renewal CalculatorFind your vehicle registration or inspection renewal date.Invoice Due Date CalculatorCalculate a payment due date from Net 15/30/60/90 terms.
Travel & Immigration
Schengen days, visas, passports, and naturalization dates.
Schengen 90/180 Day CalculatorTrack your Schengen days used and days remaining.Green Card Naturalization Date CalculatorFind your earliest N-400 filing date and eligibility date.Visa Expiry CalculatorFind your visa expiry date and days remaining.Passport Expiry CheckerCheck your passport meets a destination's validity rule.
Universal Date Math
Days between dates, countdowns, workdays, and more.
Leap Year CheckerCheck instantly whether a year is a leap year.PopularDays Between Two Dates CalculatorFind the exact number of days between two dates.Date CalculatorAdd or subtract days, weeks, months, or years from a date.Add or Subtract Days CalculatorAdd or subtract a number of days from a date.Date Duration CalculatorFind the duration between two dates in years, months, and days.PopularCountdown CalculatorLive countdown to any date and time.Business Days CalculatorCount workdays between two dates or add workdays to a date.Day of the Week CalculatorFind what day of the week any date falls on.Age Difference CalculatorFind the exact age gap between two people.Week Number CalculatorFind the ISO week number for any date.Day of Year CalculatorFind which day number of the year any date is.Quarter CalculatorFind the calendar or fiscal quarter for any date.Time Zone Meeting CalculatorConvert a meeting time between two time zones.NewHalfway Date CalculatorFind the exact midpoint date between two dates.TrendingYear Progress CalculatorSee what percentage of the year has passed and how many days remain.NewDaylight Saving Time CalculatorFind the next date clocks change for daylight saving time (US).NewJulian Date CalculatorConvert a calendar date to and from military/manufacturing Julian date format.TrendingDays Until Weekend CalculatorFind how many days remain until the weekend.NewWeekday Occurrences CalculatorCount how many Mondays, Fridays, or any weekday fall between two dates.NewNext Weekday CalculatorFind the date of the next Monday, Friday, or any weekday.NewLast Day of the Month CalculatorFind the last calendar day of any month.NewWorking Days in a Month CalculatorFind how many business days are in any month.NewNext Leap Day CalculatorFind the date of the next February 29th.
Personal & Life Events
Ages, anniversaries, streaks, and family milestones.
PopularAge CalculatorCalculate exact age in years, months, and days.Anniversary CalculatorFind your next anniversary and years together.Next Birthday CalculatorFind how many days until your next birthday.Days Alive CalculatorFind out how many days you've been alive.Retirement Countdown CalculatorFind your retirement date and days remaining.Streak Day CalculatorTrack any habit streak and your next milestone.Sobriety CalculatorTrack days sober and your next recovery milestone.PopularPregnancy Due Date CalculatorEstimate your due date from your last period or conception date.Ovulation CalculatorEstimate your fertile window and next period.IVF Due Date CalculatorEstimate your due date from an embryo transfer date.Half Birthday CalculatorFind your half birthday date.Golden Birthday CalculatorFind the year your age matches your birth day.NewPeriod CalculatorPredict your next period and current cycle day.NewConception Date CalculatorEstimate the likely conception window from a due or birth date.NewWedding Countdown CalculatorLive countdown to your wedding day.NewQuit Smoking CalculatorTrack days smoke-free and money saved since quitting.NewAge on a Specific Date CalculatorFind out how old you were, or will be, on any date.
Reference & Fun
Timestamps, zodiac signs, moon phases, and holidays.
Timestamp ConverterConvert between Unix timestamps and dates.Zodiac Sign CalculatorFind your Western zodiac sign by birth date.Chinese Zodiac CalculatorFind your Chinese zodiac animal and element.Moon Phase CalculatorFind the approximate moon phase for any date.Holiday Date FinderFind the exact date of common holidays for any year.TrendingRamadan Countdown CalculatorEstimate the days remaining until the next Ramadan.Pet Age CalculatorConvert your dog or cat's age into human years.TrendingChristmas Countdown CalculatorLive countdown to Christmas Day.TrendingDiwali Countdown CalculatorFind how many days remain until the next Diwali.TrendingChinese New Year Date FinderFind the exact date of the next Chinese New Year.Eid al-Fitr CalculatorEstimate the days remaining until the next Eid al-Fitr.Eid al-Adha CalculatorEstimate the days remaining until the next Eid al-Adha.TrendingBlack Friday Countdown CalculatorFind how many days remain until the next Black Friday.Mother's Day Countdown CalculatorFind how many days remain until the next Mother's Day.Father's Day Countdown CalculatorFind how many days remain until the next Father's Day.TrendingNew Year's Countdown CalculatorFind how many days remain until New Year's Day.TrendingHalloween Countdown CalculatorFind how many days remain until Halloween.NewValentine's Day Countdown CalculatorFind how many days remain until Valentine's Day.NewFriday the 13th CalculatorFind the next Friday the 13th from any date.TrendingThanksgiving Countdown CalculatorFind how many days remain until Thanksgiving (US).NewEaster Countdown CalculatorFind how many days remain until the next Easter Sunday.NewIndependence Day Countdown CalculatorFind how many days remain until July 4th (US).NewLabor Day Countdown CalculatorFind how many days remain until Labor Day (US).NewSt. Patrick's Day Countdown CalculatorFind how many days remain until St. Patrick's Day.NewGroundhog Day CalculatorFind how many days remain until Groundhog Day.NewSolstice & Equinox CalculatorFind the next solstice or equinox date.TrendingRoman Numeral Date ConverterConvert any date into Roman numerals.NewNext Full Moon CalculatorFind the date of the next full moon.