[API reference](https://evolu.dev/docs/api-reference) › [@evolu/nodejs](https://evolu.dev/docs/api-reference/nodejs) › hrDurationToMillis

```ts
function hrDurationToMillis(
  duration: HrDuration,
): number &
  Brand<"NonNaN"> &
  Brand<"Finite"> &
  Brand<"Int"> &
  Brand<"NonNegative"> &
  Brand<"LessThan281474976710655"> &
  Brand<"Millis">;
```

Defined in: [packages/nodejs/src/Time.ts:44](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/nodejs/src/Time.ts#L44)

Converts a high-resolution duration to the nearest millisecond.