I have a field that includes the date and time.  I would like to remove the date from this field, i know how to show only time, and group by time.

 

for instance, im trying to find peak call times, my groups are looking like this

 

1/1/11  0100

1/1/11  1400

1/1/11 2300

1/2/11  0100

1/2/11  2200

1/2/11  2300

 

i would like to show an output like this

 

0100  - 2

1400 - 1

2200 - 1

2300 -2 

 

any ideas?