half-hourly
- s occurring ever half hour
- r every thirty minutes, every half hour
- The bikes, which are available from over 1,421 stations around the city, can be rented on a half-hourly basis (1 euro for the first half hour and 2 euros for the second half hour .
- Its half-hourly news bulletins are broadcast in both languages from its studios south of Paris; an Arabic version is planned for next year, and there are even provisional plans for .
- Then a ferry ride (half-hourly) across the Tagus to Brando.