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📅Date & Time Tools (14)

Age, date difference and countdown calculators.

Working out exact ages, the number of days between two dates, or counting down to an event involves more edge cases than it seems, leap years, varying month lengths, time zones. Our Date & Time tools handle that complexity for you, giving precise results in years, months, weeks and days, plus a live-updating countdown timer for upcoming events.

Age Calculator

Calculate your exact age in years, months, weeks and days.

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Time Zone Converter

Convert a date and time between different time zones.

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Working Days Calculator

Calculate the number of business days between two dates.

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Date Calculator

Find the difference between two dates.

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Countdown Timer

Countdown to any event.

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Add Days Calculator

Add a number of days to a date and find the resulting date.

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Subtract Days Calculator

Subtract a number of days from a date and find the resulting date.

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Time Duration Calculator

Calculate the exact duration between two dates and times.

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Week Number Calculator

Find the ISO week number for any date.

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Stopwatch

A simple online stopwatch with start, pause, reset and lap timing.

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Business Hours Calculator

Calculate the elapsed business hours between two dates within a working-hours window.

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Shift Calculator

Calculate hours worked in a single shift from clock-in and clock-out times, minus breaks.

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Payroll Hours Calculator

Total up hours worked across a week from daily clock-in/out times, with overtime and pay.

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Age Difference Calculator

Calculate the exact age gap between two people's birth dates.

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