So close to

 I missed the record (320 seconds) by 2 secs on a 4x6 challenge grid puzzle .  My score is 322 secs a little more than 5 minutes.

This is a typical 4x6 puzzle.



Clues for Logic Puzzle:
 1. Neither the person departing from Guadalupe nor the person departing from Hardwick is Allen.
 2. The six conductors are the person arriving at Paradise, the person departing from Guadalupe, the conductor working on June 16, the person departing from Hardwick, Thomas and the conductor departing from Audubon.
3. Of the person arriving at Paradise and the person working on June 17, one will depart from Farley and the other is Mitchell.
4. Chris won't arrive at Zwingle.
5. The conductor arriving at Thornburg will leave 2 days before the person departing from Kent.
6. The person departing from Guadalupe will leave sometime before the person arriving at Thornburg.
7. Of the person working on June 15 and Oscar, one will arrive at New Hartford and the other will depart from Farley.
 8. Of Chris and the person arriving at Ripley, one will depart from Audubon and the other is scheduled to leave on June 19.
9. Neither the person departing from Guadalupe nor the person departing from Hardwick is Mitchell.