Date & Time calculators
Count days between dates, add days to a date, work out exact age and total hours worked.
Age Calculator
Calculate exact age in years, months and days from a date of birth, plus total days lived and days until the next birthday.
Days Between Dates Calculator
Count the number of days, weeks, months and business days between two dates.
Time Card Calculator
Add up a week of clock-in and clock-out times with breaks, get total and decimal hours, overtime over 40 hours and gross pay.
Date Calculator
Add or subtract days, weeks, months, years or business days from a date to find the resulting date.
Hours Calculator
Calculate the hours and minutes between two times, subtract breaks and work out pay for a shift.
Days Until Christmas
How many days until Christmas? A live countdown to December 25 with weeks, weekdays and sleeps left.
Days Until Halloween
How many days until Halloween? A live countdown to October 31 with weeks and weekdays left.
Days Until New Year
How many days until New Year's Day? A live countdown to January 1 with weeks and weekdays left.
Days Until Thanksgiving
How many days until Thanksgiving? A live countdown to the fourth Thursday of November.
Working with dates
Calendar math is harder than it looks because months have different lengths and leap years add a day. These calculators handle those rules for you and also count business days, which skip Saturdays and Sundays. Public holidays differ by country, so they are not removed automatically.