Where do I buy the day ticket?
'Giornaliero' — jor-na-LYER-o. Five syllables; 'gi' sounds like 'j' in 'jam'.
Ask when you plan to use the metro and buses multiple times in a single day. Day tickets are usually better value than buying several single tickets.
'Giornaliero' derives from 'giorno' (day). Adjectives of time period work similarly: 'settimanale' (weekly), 'mensile' (monthly), 'annuale' (annual). 'Comprare' is a regular -are verb meaning to buy — an essential vocabulary item.
C'è un biglietto da 24 ore?
Is there a 24-hour ticket?
Some cities sell tickets by hours rather than calendar days.
Quanto costa il giornaliero?
How much is the day ticket?
Follow-up question once you know where to buy it.
Il giornaliero vale da quando lo compro?
Is the day ticket valid from when I buy it?
Clarifies whether it starts at purchase or first validation.
In Rome, the 24-hour ticket (BIG — Biglietto Integrato Giornaliero) costs around €7 and covers metro, buses, and trams. For tourists, the 48h or 72h tourist pass often makes more economic sense.