A:Hello ? B: Hi , Deborah ! This is John . I'm calling from Australia . A: What are you doing in Australia ? B: I'm attending a conference in Sydney this week . Remember ? A: Oh , right . What time is it there ? B: It's 10:00 P . M . And it's four o'clock in Los Angeles , right ? A: Yes - <MASK> in the morning . B: 4:00 A . M . ? I'm really sorry . A: That's OK . I'm awake now .
four o'clock one o'clock nine o'clock