🔢 Number & Date Tools

Fourteen tools for the number and time formats that never quite line up — epoch seconds, wall-clock times in other zones, every number base from 2 to 36, plus workday, calendar and number-to-words utilities.

🕐 Timestamp Converter

Unix timestamps to readable dates and back, in any unit.

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⏳ Epoch Converter

Convert epoch time to your local time and UTC, and back again.

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🌍 Timezone Converter

Convert a time between any two zones, with daylight saving handled.

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🔢 Number Base Converter

Binary, octal, decimal, hex and every base to 36, at arbitrary precision.

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🎂 Age Calculator

Exact age in years, months and days, plus next birthday countdown.

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📅 Date Difference Calculator

Days, weeks, months and years between two dates.

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💼 Workdays Calculator

Add business days to a date, skipping weekends.

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➕ Date Adder & Subtractor

Add or subtract years, months, weeks or days from a date.

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🗓️ Week Number Calculator

Find the ISO 8601 week number for any date.

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⏳ Event Countdown Timer

Live countdown to any date and time.

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🏛️ Roman Numeral Converter

Convert numbers to Roman numerals and back.

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♈ Zodiac Sign Calculator

Find your Western zodiac sign from a birth date.

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🔤 Number to Words Converter

Spell out any number in English words.

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📆 Leap Year Checker

Check whether a year is a leap year, plus the next/previous ones.

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