What time units can I convert between?

The Time converter supports 12 units, including Nanosecond, Microsecond, Millisecond, Second, and more.

Is the Time converter free and accurate?

Yes — it's free with no limits, and uses standard conversion factors for time.

Does the converter store the values I enter?

No. Conversions run entirely in your browser — nothing you type is sent to a server or stored.

Time Converter

Select the units you want to convert between and enter a value.

Time

From

Worth Knowing

Time is the one quantity here that isn't metric, thanks to base-60 seconds and minutes inherited from ancient Babylon, plus months and years of uneven length. That irregularity is why time arithmetic is deceptively hard — a 'month' has no fixed number of seconds, and a year is really about 365.24 days. Converting cleanly works best for the regular units (seconds through weeks); anything involving months or years is an approximation unless tied to specific calendar dates.

How to Use

Choose the unit you're converting from and the unit you want, from the two dropdowns above.
Type a value into the input field — the converted result updates instantly.
Swap the two units any time to flip the direction of the conversion.