10 free tools
Time & Date Calculators
Work with time and dates the easy way — calculate ages, durations, working days and countdowns in seconds.
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Age Calculator
Find your exact age in years, months and days — plus your total days lived and a countdown…
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Date Difference
Count the days, weeks and months between any two dates.
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Countdown Timer
A live countdown to any date and time — birthdays, launches, deadlines or holidays.
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Stopwatch
A precise stopwatch with lap times — start, stop and reset with a click or the spacebar.
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Timestamp Converter
Convert a Unix epoch timestamp into a readable date, or turn a date into its timestamp
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Time Duration Calculator
Find the exact days, hours and minutes between two dates and times.
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Working Days Calculator
Count business days between two dates, excluding weekends and the holidays you specify.
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Time Unit Converter
Convert any amount of time into every other unit — from milliseconds to millennia
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Generation Calculator
Enter your birth year (or age) to find out which generation you belong to — from the…
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Months, Weeks & Years Converter
Interchange months, weeks and years — type in any one box and the other two update instantly.
About these tools
From planning a project deadline to counting down to an event or working out someone’s exact age, these tools handle the fiddly calendar maths for you. Browse more in our full tool directory or read the guides in our articles.
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