Date and time calculators
Free calculators for dates and time — work out your age, count days between dates, find working days, hit deadlines, and calculate notice periods. Quick answers with no sign-up needed.
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Age Calculator
Find your exact age in years, months, days, total days alive, and how long until your next birthday.
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Days Between Dates Calculator
Count the exact number of days, weeks, months, and years between any two dates.
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Deadline Calculator
Add or subtract days, weeks, months, or years from a start date to find the resulting deadline.
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Notice Period Calculator
Find out your last working day from the date you give notice and your contractual notice period.
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Working Days Calculator
Count working days (Monday to Friday) between two dates — with optional public-holiday exclusion.