Time Unit Converter

• Free online time unit converter supporting real-time conversion across more than 20 units — from picoseconds, nanoseconds and microseconds to seconds, minutes, hours, days, weeks, months, years, decades, centuries and millennia, plus ancient Chinese units like Ke, a stick of incense, Jiazi and Ji
• Handy for software development, project management, historical research and similar scenarios

1. Open the tool page — no download or installation needed
2. Type a number into any unit field and all other units update automatically in real time
3. Click "Reset All" to clear every field, or copy a single result when needed

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online time unit conversion tool, supports real-time conversion between milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, centuries, millennia, as well as ancient Chinese time units such as Ke, a stick of incense, Jiazi, and Ji. Suitable for software development, project management, historical research and other scenarios.

Open the tool page — no download or installation needed Type a number into any unit field and all other units update automatically in real time Click "Reset All" to clear every field, or copy a single result when needed

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, Time Unit Converter is completely free. No download or installation required — it runs right in your browser.