Time Unit Converter
Convert between every time unit — nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, centuries — with explicit, switchable month (28/30/30.44/31) and year (365/365.25/366) definitions. BigInt-safe down to nanoseconds, so even huge magnitudes stay exact. Single input fans out to all units. Humanize mode ('1d 1h 1m 1s'), inverse parser, dev units (ticks, jiffies, frames@fps) and JS/Python code snippets. 100% client-side.
Convert between every time unit — nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, centuries — with explicit, switchable month (28/30/30.44/31) and year (365/365.25/366) definitions. BigInt-safe down to nanoseconds, so even huge magnitudes stay exact. Single input fans out to all units. Humanize mode ('1d 1h 1m 1s'), inverse parser, dev units (ticks, jiffies, frames@fps) and JS/Python code snippets. 100% client-side. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.