阅读短文，回答下列问题。

I'm Mike, I'm 12 years old. I live in China now. I have a brother, and his name is Bob. We go to school at 7：30. We go home at 5：30 in the afternoon. We go to bed at about 9：30. I have a new clock. I put it on the desk. Bob has an old watch. Well, what time is it now?It's about four twenty. I usually play sports with Bob. But not now. Why?Because it's raining. We can't go outside. We have to stay at home to do our homework.