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8:00pm-9:00pm (or 20:00-21:00 in 24-hour time) is the twenty-first hour after midnight in a solar day.

24 Declassified: Chaos Theory begins and ends at 8:00pm PST.


Picture Title Season Episode Production code Airdate
S1e21f1 "Day 1: 8:00pm-9:00pm" 1 21 1AFF20 April 23, 2002
David Palmer wins the primary, taking not only California, but all eleven states. Kim is released from prison when Melanie tells the truth, but is recaptured by henchmen of the Drazens soon after. Jack and DeSalvo are ambushed by Andre's men, and Victor Drazen explains the connection between himself and Jack. Jack offers Alexis Drazen in exchange for his freedom. Victor and Jack escape the facility just before CTU enters.
S2e13 "Day 2: 8:00pm-9:00pm" 2 13 2AFF13 February 18, 2003
Jack and his men prepare for a confrontation with Stanton's renegade soldiers as they converge on the bomb. Kim becomes suspicious of her host, but is forced to stay because of her status with the police. Stanton finally breaks down and gives Palmer the location of the bomb.
S3ep8 "Day 3: 8:00pm-9:00pm" 3 8 3AFF08 December 16, 2003
Hector Salazar tries to convince Ramon to let Jack live in order to purchase the virus. Claudia expresses her fury about being left behind when Jack arrested Ramon. Hector's men capture Chase and Ramon forces Jack to prove his loyalty. Anne Packard ends her relationship with President Palmer.
Planetocatch "Day 4: 8:00pm-9:00pm" 4 14 4AFF14 March 21, 2005
Jack makes a deal with Dina to put her and Behrooz in a witness protection program in exchange for infiltrating one of Marwan's terrorist cells. Chloe is called by Michelle and is reinstated into CTU. Audrey realizes that she may still love Paul, and Mitch Anderson sneaks onto an Air Force base.
WaynePalmerHit "Day 5: 8:00pm-9:00pm" 5 14 5AFF14 March 20, 2006
CTU investigates a new lead on Bierko, but finds resistance from German intelligence officer Theo Stoller. Martha Logan is skeptical of the administration's move for a curfew. New Homeland Security officials attempt to change operating protocol involving Chloe O'Brian and Bill Buchanan. Meanwhile, Wayne Palmer has some information he has to get to Aaron Pierce that someone doesn't want getting out.
S06e15 "Day 6: 8:00pm-9:00pm" 6 15 6AFF15 March 26, 2007
Jack, through CTU intel, finds and captures Gredenko, who negotiates a deal with CTU. To thwart the Vice President's plans to bomb Fayed's country, Karen Hayes and Sandra Palmer awaken President Palmer from his chemically-induced coma in hopes that he will rescind the order to strike before the missile launches.
7x13main "Day 7: 8:00pm-9:00pm" 7 13 7AFF13 March 9, 2009
As Juma's men prepare the President for her "statement," Bill makes a heroic sacrifice to save her and the other hostages. Honoring his friend's last wishes, Jack resolves to continue his conversation with Ryan Burnett, even while an assassin prepares to silence Burnett for good. In the aftermath of the attack, Olivia accepts her mother's request for aid, and delivers a warning to Ethan Kanin.
8x05a "Day 8: 8:00pm-9:00pm" 8 5 8AFF05 January 25, 2010
Renee, with Jack following close behind, takes Ziya Dakhilov to meet Vladimir Laitanan in order to reestablish her cover. President Omar Hassan must decide what actions he will take against traitors in his country. Concerned for his brother's safety, Josef takes him to a medical clinic to seek radiation treatment.
Lx10 main "Day 9: 8:00pm-9:00pm" LAD 10 9AFF10 June 30, 2014
10x09 Jadalla at gunpoint "Day 10: 8:00pm-9:00pm" LEG 9 1AZK09 March 27, 2017

Expanded universe Edit

The GameEdit

Mission Number Synopsis
"Escape from Madsen's Base" 29 After meeting Chase, Jack tries to escape from Madsen's base with Kim and return to CTU.
"Jack and Kim Escape" 30 Jack and Kim drive away from the base.
"Disabling the Data Scrambler" 31 CTU discovers the next part of Madsen's plan and discover a device hampering their efforts.


Title Chapter Synopsis
Operation Hell Gate 24
Veto Power 18
Trojan Horse 16
Cat's Claw 14
Vanishing Point 9
Chaos Theory 1 Incarcerated in federal prison for murdering a suspect, Jack Bauer fights off an attack from three MS-13 members in the shower. Ryan Chappelle and Christopher Henderson butt heads over the question of Jack's guilt. Former MMA champion Mark Kendall hits the mat in preparation to win back his title.
Storm Force 16
Collateral Damage 14
Trinity 3
Head Shot 18
Death Angel 10
Deadline 4


Title Hour Synopsis
One Shot 11
Midnight Sun 8
Stories 9
Nightfall 21
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