[Gpsbabel-misc] Extracting timeperiods and certain tracks

[Al B. <gps...@ml...>]

Is it possible to extract the data within a defined timeperiod, where 
date/time of the log doesn't match the queried time exactly.

e.g:

Log contains data from 2007-05-24 5:17  - 2007-05-25 19:20

Since I don't know the exact time I would like to query all tracks and 
waypoints between

2007-05-24 5:00  - 2007-05-25 20:00


How can I extract a certain track only?
I found multiple tracknumbers in the output, is it possible to create the 
output for a certain tracknumber?

Which other possibilities exist to create the output for a certain track? 
E.g. as a time period.

I would like to use the first picture of an photo-album and the last one and 
use this time to create a gpsbabel-output. The time-difference between photo 
and the log will be calculated for the query.

Al