Free Time Converter Online

Convert time units, switch between time zones, calculate date differences, and add or subtract durations — all free, no registration.

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Time UnitsConvert between milliseconds, seconds, minutes, hours, days, weeks, months, and years.

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Time Zone ConverterConvert any time between world time zones instantly.

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Date DifferenceCalculate the exact difference between two dates and times.

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Add / Subtract TimeAdd or subtract any duration from a date and time to get the result.

About This Time Converter

Whether you need to convert 3 hours to minutes, check what time it is in Tokyo when it's noon in London, or find out how many days until a deadline — this free time converter has you covered.

All tools run directly in your browser with no data sent to any server. Works on desktop and mobile.