A B
1 6:00 a 7:00 a
2 7:05 a 8:30 a
3 8:35 a 10:00 a
4
5 12:00 p 1:00 p
6 1:05 p 4:00p
7
8 6:00p 10:00p

Each call-out will seperated by a blank row and, as shown above, can be made
up of single or mutiple rows. There may be only 1 call-out or up to 5 in a
day. I'm tring to find the start and stop times for each.
Start End
9 1st 6:00a 10:00a
10 2nd 12:00p 2:00p
11 3rd 5:00p 7:00p

Thanks for any help.