answer: John calls Deborah from Australia at 10 PM and Deborah tells him that it is 4 AM in Los Angeles.
documents: #Person1#: Hello?
  #Person2#: Hi, Deborah! This is John. I'm calling from Australia.
  #Person1#: What are you doing in Australia?
  #Person2#: I'm attending a conference in Sydney this week. Remember?
  #Person1#: Oh, right. What time is it there?
  #Person2#: It's 10:00 P. M. And it's four o'clock in Los Angeles, right?
  #Person1#: Yes - four o'clock in the morning.
  #Person2#: 4:00 A. M.? I'm really sorry.
  #Person1#: That's OK. I'm awake now.