Calculate number of parallel jobs running at given launch time

[#1]

Dear Experts,

I would like to calculate numbers of jobs running at a given launchtime,we have start and end time in data as below:

Product	Header1	LaunchTime	Start	End
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/24/2014 11:40:52 PM	4/24/2014 11:40:50 PM	4/24/2014 11:53:42 PM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/24/2014 11:54:59 PM	4/24/2014 11:54:56 PM	4/25/2014 5:06:54 AM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 3:18:51 PM	4/25/2014 3:18:48 PM	4/25/2014 8:19:38 PM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 3:19:14 PM	4/25/2014 3:19:12 PM	4/25/2014 6:48:56 PM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 6:49:30 PM	4/25/2014 6:49:26 PM	4/25/2014 7:25:21 PM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 8:10:02 PM	4/25/2014 8:10:00 PM	4/26/2014 1:37:53 AM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 8:10:30 PM	4/25/2014 8:10:27 PM	4/26/2014 1:37:52 AM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 9:06:30 AM	4/25/2014 9:06:28 AM	4/25/2014 10:58:19 AM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 9:42:29 PM	4/25/2014 9:42:26 PM	4/26/2014 1:37:46 AM
Macnozyfec Eenub 13 CJA-ZPU	Published Application	4/25/2014 11:01:13 AM	4/25/2014 11:01:10 AM	4/25/2014 3:18:06 PM

for e.g

if user select '4/25/2014 3:19:14 PM' in 4th row then he should get two rows only i.e 3rd and 4th row.

Thanks

AJ