[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Time](https://evolu.dev/docs/api-reference/common/Time) › DurationLiteralHours

```ts
const DurationLiteralHours: union(
  templateLiteral(Digit1To23, "h"),
  templateLiteral(Digit1To23, ".", Digit1To9, "h"),
);
```

Defined in: [packages/common/src/Time.ts:454](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Time.ts#L454)

Hours duration: `"1h"` to `"23h"` or `"1.1h"` to `"23.9h"`. See
[DurationLiteral](https://evolu.dev/docs/api-reference/common/Time/variables/DurationLiteral).