Day 1: 4:00am-5:00am

===Appearances===
<div class="appear">
*Characters
**[[Abbott]] <small>(first appearance)</small>
**[[Rick Allen]]
**[[Tony Almeida]]
**[[Jack Bauer]]
**[[Kim Bauer]]
**[[Teri Bauer]]
**[[Berkin]]
**[[Rachel Brenner]] <small>(mentioned only)</small>
**[[Suzy Brenner]] <small>(mentioned only)</small>
**[[Patty Brooks]]
**[[Kevin Carroll]]
**[[Davis (Day 1)|Davis]] <small>(first appearance, voice only)</small>
**[[Frasier]] <small>(first appearance)</small>
**[[Ira Gaines]]
**[[Lyle Gibson]] <small>(mentioned only)</small>
**[[Jimmy Kelly]]
**[[Maureen Kingsley]]
**[[Kinnard (Day 1)|Kinnard]] <small>(first appearance)</small>
**[[Jessie Hampton]] <small>(mentioned only)</small>
**[[George Mason]]
**[[Dan Mounts]]
**[[Nina Myers]]
**[[Douglas Newman]]
**[[David Palmer]]
**[[Keith Palmer]]
**[[Nicole Palmer]]
**[[Sherry Palmer]]
**[[Greg Penticoff]]
**[[Phillips (Day 1)|Phillips]]
**[[Aaron Pierce]]
**[[Ryan Sealey]] <small>(mentioned only)</small>
**[[Perry Tanaka]] <small>(mentioned only)</small>
**[[Alan York]] <small>(first appearance)</small>
**[[Janet York]]
**([[St. Mark's receptionist]]) <small>(first appearance)</small>
**([[Third member of Pierce's unit]])
*Locations
**[[Avenue 26]] <small>(first appearance)</small>
**[[California]]
**[[Century City]]
**[[CTU Los Angeles building]]
**[[Earth]]
**[[Gaines compound]] <small>(first appearance)</small>
**[[Los Angeles]]
**[[Los Angeles County]]
**[[Nevada]] <small>(mentioned only)</small>
**[[North America]]
**[[North Hollywood]]
**[[Orange County]] <small>(mentioned only)</small>
**[[Palmer campaign hotel]]
**[[18166 San Fernando Road]] <small>(first appearance)</small>
**[[San Fernando Valley]]
**[[St. Mark's Hospital]] <small>(first appearance)</small>
**[[United States of America]]
**[[Van Nuys]]
**[[Van Nuys Precinct]] <small>(first appearance)</small>
**[[Ventura County]] <small>(mentioned only)</small>
*Organizations
**[[Central Intelligence Agency]]
**[[Counter Terrorist Unit]]
**[[CTU Los Angeles]]
**[[District]]
**[[Democratic Party]]
**[[Gaines crew]]
**[[Los Angeles Police Department]]
**[[United States Secret Service]]
**[[United States Senate]]
*Titles
**[[Agent]]
**[[CTU Chief of Staff]]
**[[CTU Director]]
**[[District Director]]
**[[Lieutenant]] <small>(mentioned only)</small>
**[[Officer]]
**[[Senator]]
**[[Sergeant]] <small>(first appearance)</small>
*Objects
**[[Beretta 92]]
**[[Cadillac]]
**[[Car]]
**[[Coffee]]
**[[Computer]]
**[[Ford Crown Victoria]]
**[[Gun]]
**[[Handgun]]
**[[Key card]]
**[[Satellite]] <small>(mentioned only)</small>
**[[Shotgun]]
**[[Telephone]]
**[[Television]]
*Events
**[[Keith Palmer scandal]]
**[[Presidential primary]] <small>(mentioned only)</small>
**[[Super Tuesday]]
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