Rule reminder

In formal contexts (official announcements, signs, broadcasts), Italy commonly uses the 24-hour clock: tredici (13:00), quattordici (14:00), quindici (15:00), sedici (16:00), diciassette (17:00), diciotto (18:00), diciannove (19:00), venti (20:00), ventuno (21:00), ventidue (22:00), ventitrè (23:00).