[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
type DurationLiteralHours = `${Digit1To23}h` | `${Digit1To23}.${Digit1To9}h`;
```

Defined in: [packages/common/src/Time.ts:251](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Time.ts#L251)

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