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Input Time

Converted Time

Converted value will appear here

Time Converter - Duration & Time Unit Converter

Convert between seconds, minutes, hours, days, weeks, months, years and more instantly

What is Time Converter?

Time Converter is a free online tool that converts between different units of time duration. It supports all common time units from nanoseconds to centuries, including seconds, minutes, hours, days, weeks, months, and years. Perfect for programming, project planning, scientific calculations, and everyday time conversions.

How to Use Time Converter

  1. Enter the time value in the input field
  2. Select the source unit from the dropdown menu
  3. Select the target unit from the output dropdown
  4. The conversion happens automatically as you type
  5. Use the "Swap Units" button to quickly reverse the conversion
  6. Copy the result using the copy button
  7. Use "Clear" to reset all values

Supported Units

Small Time Units

  • • Nanoseconds (ns) - 10⁻⁹ seconds
  • • Microseconds (μs) - 10⁻⁶ seconds
  • • Milliseconds (ms) - 0.001 seconds

Common Time Units

  • • Seconds (s) - Base unit
  • • Minutes (min) - 60 seconds
  • • Hours (h) - 3,600 seconds
  • • Days (d) - 86,400 seconds

Large Time Units

  • • Weeks (w) - 7 days
  • • Months (mo) - ~30.44 days
  • • Years (y) - ~365.25 days
  • • Decades - 10 years
  • • Centuries - 100 years

Frequently Asked Questions

How accurate are the conversions?

All conversions use standard conversion factors and are accurate to 6 decimal places. For most practical purposes, this provides excellent precision.

How are months and years calculated?

Months use the average Gregorian month (30.44 days) and years use the average Gregorian year (365.25 days) to account for leap years.

Is my data secure?

Yes, all calculations happen locally in your browser. Your data never leaves your device.

Can I use this offline?

Yes, once loaded, the converter works completely offline in your browser.