How many times Hour Hand and Minute Hand will make angle Zero in 12 hours time?

It should be 12 times if you assume that the hour & minute hand line up exactly on top of each other, which would make an angle of zero. Which in a 12 hour period would occur at following times:

Noon or Midnight

1:05

2:10

3:15

4:20

5:25

6:30

7:35

8:40

9:45

10:50

11:55