ChronoMatrics
Date & Time Calculators
Free, instant tools for every date and time calculation.
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Age Calculator
Free age calculator. Find your exact age in years, months, weeks and days from your date of birth. Instant, accurate and private — runs in your browser.
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Days Between Dates Calculator
Calculate the exact number of days, weeks and months between any two dates. Free, instant and accurate date difference calculator.
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Countdown Timer
Create a live countdown timer to any date, event or deadline. Free online countdown clock with days, hours, minutes and seconds.
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Business Days Calculator
Calculate business days between dates or find the date X working days from today, skipping weekends and public holidays. Free and accurate.
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Time Zone Converter
Convert any time between time zones instantly. Handles daylight saving (DST) automatically. EST, PST, GMT, UTC, CET, IST, AEST and more.
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Work Hours Calculator
Calculate total work hours from clock-in and clock-out times, minus breaks. Get hours, decimal hours and gross pay. Free timesheet calculator.
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Days Until Date Calculator
Find out exactly how many days until any future date, holiday or event. Free countdown calculator with weeks and months breakdown.
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- ✓ 100% free, forever
- ✓ Runs in your browser — no data sent
- ✓ No sign-up required
- ✓ Works on mobile & desktop