Time Converter

About the Time Converter

The Time Converter translates time durations between every common unit — seconds, minutes, hours, days, weeks, months, years, milliseconds, microseconds, and nanoseconds. Project managers estimating tasks, developers benchmarking code performance, scientists measuring experiments, parents calculating sleep duration, and students completing physics homework all use time conversion every day.

Units supported

Sub-second: milliseconds (ms), microseconds (µs), nanoseconds (ns) — essential for code performance benchmarks. Standard: seconds, minutes, hours. Larger: days, weeks, months (average 30.44 days), years (365.25 days including leap years), decades, centuries. The converter handles whole numbers and decimals, so 1.5 hours becomes 90 minutes or 5,400 seconds instantly.

How to use it

1. Type a number in any time field.
2. Every other unit updates in real time.
3. Click any value to copy it to your clipboard.
4. Pin your favourite unit pair to keep it at the top of the list.

Common use cases

Converting code execution time from milliseconds to seconds for human-readable reports, estimating project deadlines from hours to working days, calculating compound interest periods from months to years, translating sleep duration from hours to minutes when tracking baby naps, converting video render time estimates between units, and translating physics measurements from microseconds to milliseconds.

Privacy

All conversions run in your browser using simple multiplication. Nothing is sent to our servers. The tool works offline once loaded.

Tamer Baghdadi

CEO / Co-Founder