Как сделать 5 типов вопросов и отрицание к the day begins early at 7.15 am

1) Does the day begin early at 7.15 a. m.?

2) Does the day begin early at 6.15 or 7.15 a. m.?

3) What begins early at 7.15 a. m.?

4) What time does the day begin?

5) The day begins early at 7.15 a. m., doesn't it?

6) The day does not begin early at 6.15 a. m.