# getDaysInDuration()

Returns the number of days in a duration.

## Signature

`getDaysInDuration(Duration duration)`

## Parameters

***duration*:** Type: `Duration`. The duration object returned by `$A.localizationService.duration`.

## Returns

**Type: `number`** The number of days in the duration.

## Sample Code

```javascript
var dur = $A.localizationService.duration(48, 'hour');
// Returns 2, the number of days for the given duration
$A.localizationService.getDaysInDuration(dur);
```

**See Also**

- [duration()](/docs/platform/aura-platform/guide/ref-jsapi-auralocalizationservice-duration.md)