Code to group rows with the same time value?

In a nutshell, here's what I have:

Column A: Start Time
Column B: End Time

The macro I have so far first sorts all entries according to each column and then inserts a row between each entry. What I would like for it do after this is to group entries with the same Start and End times together (i.e. no rows between them.) Any suggestions?

P.S. the code I'm using at this point inserts the rows one by one like so:

Please Login or Register  to view this content.

I suspect there's a more efficient way of doing it, though.

This inserts a new row whenever column A or B does not match - add this to your sorting routine, since it does not sort.

Please Login or Register  to view this content.