Jack's office from Day 1: 3:00pm-4:00pm. The spider diagram has names of people involved in the day.
Left most column is unreadable. Next column has Ellis at the top, then Jack Bauer (at CTU), Teri Bauer (at safehouse), Kim Bauer (at safehouse), Janet York. Next column has Palmer (at CTU), then Victor Drazen, Andre Drazen, then splits into Cofell and Gaines, then below them Dan/Rick and Kevin Carroll alias Alan York. Next column has Martin Belkin (photographer on plane?) and Jamey Farrell (CTU inside leak) connected to Gaines, and Penticoff (in custody LAPD) connected to Gaines and Alan York. Then Key card is connected to Jamey Farrell, and three arrows come off the top of Keycard connected to (new shooters) Jovan Myovic, Mishko Suba, and Lexis Drazen (Tony cross ref with District). Below keycard it says "created by..." then something unreadable.