Zero Hour

Zero Hour may refer to:
 * Midnight, or 00:00
 * Zero hour (1945), the capitulation of the Nazi government at midnight May 8, 1945
 * Zero Hour (military designation), the scheduled time for the start of some event, especially a military operation

Film, television and radio

 * The Zero Hour (1939 film), an American film directed by Sidney Salkow
 * Zero Hour (1944 film), a 1944 Canadian documentary film
 * Zero Hour!, a 1957 film written by Arthur Hailey, later parodied as Airplane!
 * Zero Hour (1977 film), a 1977 West German film directed by Edgar Reitz
 * The Zero Hour (2010 film), a 2010 Venezuelan action film
 * "Zero Hour" (Star Trek: Enterprise), a 2004 episode of Star Trek: Enterprise
 * "Zero Hour" (Stargate SG-1), a 2004 episode of the science fiction television series Stargate SG-1
 * Zero Hour (2004 TV series), a 2004 documentary-style TV show retelling tragic man-made disasters
 * Zero Hour (2013 TV series), a 2013 American conspiracy drama series
 * "Zero Hour! The Destruction of the Hidden Leaf Village Begins!", a 2004 episode of Naruto
 * The Zero Hour (Japanese radio series), a radio program broadcast by Japan in World War II
 * The Zero Hour (U.S. radio series), a 1973–74 radio drama series hosted by Rod Serling
 * "Zero Hour", an episode of the animated television series Star Wars Rebels

Literature

 * Zero Hour: Crisis in Time!, a 1994 DC Comics comic book miniseries and crossover storyline
 * Zero Hour, a 1997 financial espionage thriller by Joseph Finder
 * Zero Hour (play), a 2006 play by Jim Brochu about the life of actor Zero Mostel
 * "Zero Hour", a story told in the Galileo Simulator at the Christa McAuliffe Space Education Center
 * "Zero Hour", a short story by Ray Bradbury appearing in The Illustrated Man
 * "Zero Hour – Over the Top", a fictional populist manifesto by the demagogue Buzz Windrip in It Can't Happen Here
 * Zero Hour (novel), a 1928 autobiographical novel by Georg Grabenhorst
 * Zero Hour (Cussler novel), a 2013 mystery novel by Clive Cussler

Music

 * Zero Hour (band), a progressive metal band
 * Zero Hour (Eidolon album), 1996
 * Zero Hour (Zero Hour album), 1999
 * Zero Hour (Avengers album), 2003
 * "Zero Hour", a song on Noir's 2005 soundtrack
 * "Zero Hour", a song by 'Avengers' on 1979 album Zero Hour (Avengers album)
 * "Zero Hour", a song by the Plimsouls on the 1981 album The Plimsouls
 * "The Zero Hour", a song on Project One's 2008 album Project One: The Album
 * Zero Hour Records, a New York City-based record label founded in 1990
 * Tango: Zero Hour, a 1986 album by Ástor Piazzolla

Video games

 * Command & Conquer: Generals – Zero Hour, a 2003 real-time strategy video game
 * Duke Nukem: Zero Hour, a 1999 third-person shooter
 * Zero Hour: America's Medic, a 2009 game designed to train and exercise first responders
 * Modern Combat 4: Zero Hour, a 2012 first-person shooter for iOS
 * Firewall: Zero Hour, a 2018 VR first-person shooter
 * Zero Hour, a 2020 tactical multiplayer first-person shooter game developed by M7 Productions, a studio based in Dhaka, Bangladesh

Hora Cero
"Hora Cero" is "Zero Hour" in Spanish. It may make reference to
 * Hora Cero, a comic book anthology from Argentina
 * "Hora Zero", a song on Rodrigo y Gabriela's 2009 album 11:11

Other uses

 * Zero Hour (activist organization), a U.S. youth organization dedicated to climate change activism, co-directed by Jamie Margolin
 * Zero Hour, the campaign for the Climate and Nature Bill in the UK