[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 =
  | "1h"
  | "2h"
  | "3h"
  | "4h"
  | "5h"
  | "6h"
  | "7h"
  | "8h"
  | "9h"
  | "10h"
  | "11h"
  | "12h"
  | "13h"
  | "14h"
  | "15h"
  | "16h"
  | "17h"
  | "18h"
  | "19h"
  | "20h"
  | "21h"
  | "22h"
  | "23h"
  | "1.1h"
  | "1.2h"
  | "1.3h"
  | "1.4h"
  | "1.5h"
  | "1.6h"
  | "1.7h"
  | "1.8h"
  | "1.9h"
  | "2.1h"
  | "2.2h"
  | "2.3h"
  | "2.4h"
  | "2.5h"
  | "2.6h"
  | "2.7h"
  | "2.8h"
  | "2.9h"
  | "3.1h"
  | "3.2h"
  | "3.3h"
  | "3.4h"
  | "3.5h"
  | "3.6h"
  | "3.7h"
  | "3.8h"
  | "3.9h"
  | "4.1h"
  | "4.2h"
  | "4.3h"
  | "4.4h"
  | "4.5h"
  | "4.6h"
  | "4.7h"
  | "4.8h"
  | "4.9h"
  | "5.1h"
  | "5.2h"
  | "5.3h"
  | "5.4h"
  | "5.5h"
  | "5.6h"
  | "5.7h"
  | "5.8h"
  | "5.9h"
  | "6.1h"
  | "6.2h"
  | "6.3h"
  | "6.4h"
  | "6.5h"
  | "6.6h"
  | "6.7h"
  | "6.8h"
  | "6.9h"
  | "7.1h"
  | "7.2h"
  | "7.3h"
  | "7.4h"
  | "7.5h"
  | "7.6h"
  | "7.7h"
  | "7.8h"
  | "7.9h"
  | "8.1h"
  | "8.2h"
  | "8.3h"
  | "8.4h"
  | "8.5h"
  | "8.6h"
  | "8.7h"
  | "8.8h"
  | "8.9h"
  | "9.1h"
  | "9.2h"
  | "9.3h"
  | "9.4h"
  | "9.5h"
  | "9.6h"
  | "9.7h"
  | "9.8h"
  | "9.9h"
  | "10.1h"
  | "10.2h"
  | "10.3h"
  | "10.4h"
  | "10.5h"
  | "10.6h"
  | "10.7h"
  | "10.8h"
  | "10.9h"
  | "11.1h"
  | "11.2h"
  | "11.3h"
  | "11.4h"
  | "11.5h"
  | "11.6h"
  | "11.7h"
  | "11.8h"
  | "11.9h"
  | "12.1h"
  | "12.2h"
  | "12.3h"
  | "12.4h"
  | "12.5h"
  | "12.6h"
  | "12.7h"
  | "12.8h"
  | "12.9h"
  | "13.1h"
  | "13.2h"
  | "13.3h"
  | "13.4h"
  | "13.5h"
  | "13.6h"
  | "13.7h"
  | "13.8h"
  | "13.9h"
  | "14.1h"
  | "14.2h"
  | "14.3h"
  | "14.4h"
  | "14.5h"
  | "14.6h"
  | "14.7h"
  | "14.8h"
  | "14.9h"
  | "15.1h"
  | "15.2h"
  | "15.3h"
  | "15.4h"
  | "15.5h"
  | "15.6h"
  | "15.7h"
  | "15.8h"
  | "15.9h"
  | "16.1h"
  | "16.2h"
  | "16.3h"
  | "16.4h"
  | "16.5h"
  | "16.6h"
  | "16.7h"
  | "16.8h"
  | "16.9h"
  | "17.1h"
  | "17.2h"
  | "17.3h"
  | "17.4h"
  | "17.5h"
  | "17.6h"
  | "17.7h"
  | "17.8h"
  | "17.9h"
  | "18.1h"
  | "18.2h"
  | "18.3h"
  | "18.4h"
  | "18.5h"
  | "18.6h"
  | "18.7h"
  | "18.8h"
  | "18.9h"
  | "19.1h"
  | "19.2h"
  | "19.3h"
  | "19.4h"
  | "19.5h"
  | "19.6h"
  | "19.7h"
  | "19.8h"
  | "19.9h"
  | "20.1h"
  | "20.2h"
  | "20.3h"
  | "20.4h"
  | "20.5h"
  | "20.6h"
  | "20.7h"
  | "20.8h"
  | "20.9h"
  | "21.1h"
  | "21.2h"
  | "21.3h"
  | "21.4h"
  | "21.5h"
  | "21.6h"
  | "21.7h"
  | "21.8h"
  | "21.9h"
  | "22.1h"
  | "22.2h"
  | "22.3h"
  | "22.4h"
  | "22.5h"
  | "22.6h"
  | "22.7h"
  | "22.8h"
  | "22.9h"
  | "23.1h"
  | "23.2h"
  | "23.3h"
  | "23.4h"
  | "23.5h"
  | "23.6h"
  | "23.7h"
  | "23.8h"
  | "23.9h";
```

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).