- January 27
- "Day 3: 11:00pm-12:00am" airs. Immediately afterwards, the first episode of 24 Inside is broadcast over the internet.
- April 13
- "Day 3: 6:00am-7:00am" was originally scheduled to air, but pre-emted due to a Presidential press conference.
- July 28
- The first 24 comic book, One Shot, is published by IDW Publishing.
- Lt. Col. Dave Greene, subject of the dedication of "Day 4: 12:00pm-1:00pm", is killed in the line of duty in Anbar Province, Iraq.
- The "24: Complete Season Three Collection is released on DVD in Region 4.
- December 7
- "24: Season Three" is released on DVD in North America from 20th Century Fox Home Entertainment.
- 24: Original Television Soundtrack is released by Varese Sarabande.
- The racing game 24: Countdown is added to the official official Fox 24 website.
- Two episodes of 24 Inside are posted, including interviews from cast and crew of Seasons 1-4.
Births - Deaths