Wireshark-users: [Wireshark-users] How to time slice a .pcap file (UNCLASSIFIED)

From: "Clark, Rodney (AMRDEC/RCC)" <rodney.cain.clark@xxxxxxxxxxx>
Date: Fri, 7 Aug 2009 10:04:15 -0500

Classification:  UNCLASSIFIED 
Caveats: NONE

I need to take a .pcap file that is about 12 minutes long; I need to
slice off a couple of minutes at the first and at the end of the file.
How do I do this.

I have looked at the "time.time" expression but am not sure out how to
use it or if it would be beneficial (sure don't know what the time in
seconds since midnight 1/1/1900 is).

Any help would be appreciated,
Rodney Clark
Classification:  UNCLASSIFIED 
Caveats: NONE