2009

January

 * 16 - Captain Jack is reunited with the Torchwood 3 team and re-unites with John Hart. (TW:Kiss Kiss, Bang Bang) (Date: WEB:torchwood.co.uk)
 * 23 - The Torchwood 3 team discovers Cell 114 sleeper agents in Cardiff. (TW:Sleeper.) (Date: WEB:torchwood.co.uk)

February

 * Annual de-frosting of Tommy Brockless, a young soldier first cryogenically frozen in 1918. Ultimately, this turns out to be the final defrosting. (TW:To the Last Man.) (Date: WEB:torchwood.co.uk)
 * 20 - Dr. Martha Jones arrives in Cardiff on the trail of the Pharm and is temporarily assigned to Torchwood 3. (TW:Reset)
 * 27 - Dr. Owen Harper is shot and killed. (TW:Reset), (Date: WEB:torchwood.co.uk)
 * 28 - Before Martha Jones can conduct an autopsy on Owen Harper, Harper is revived by Jack Harkness using the second resurrection gauntlet. As a direct consequence, Harper continues to live past the standard 2.5 revival time, but is briefly possessed by Durac, the embodiment of Death. A number of deaths also occur at a Cardiff hospital as a result of Durac's manifestation. (TW: Dead Man Walking)

March

 * 02 - Dr. Owen Harper, who continues to have difficulty accepting his new undead existence, is relieved of his duties with Torchwood 3 (though he continues to help out as their new tea boy) as Martha Jones agrees to stay on as medical officer. Ultimately, Harper begins to come to terms with his death and returns to active duty for a mission to retrieve an alien artifact from a dying millionare, Henry Parker, who reveals intimate knowledge about Torchwood and its personnel before his passes away. With Harper reinstated, Jones departs Torchwood to return to her duties at UNIT. Soon after, Harper successfully talks a young woman out of committing suicide. (TW: A Day in the Death).
 * 19 - The Torchwood 3 team investigate the Night Travelers. Events of TW:From Out of the Rain. (Date: WEB:torchwood.co.uk)

April

 * Thousands of Adipose are born from peoples fat and walk around the streets. During this time, Donna Noble reunites with the Tenth Doctor and begins her travels with him. Before leaving with the Doctor, however, Donna briefly encounters Rose Tyler (although she is unaware of Rose's identity). (DW: Partners in Crime)
 * Conspiracy theorists begin noting the disappearance of bees from the planet Earth, which is also noted by Donna Noble. (DW: Partners in Crime, et al). It is later learned that they have left earth in anticipation of its imminent relocation to the Medusa Cascade (DW: The Stolen Earth).
 * The Sontarans invade Earth. During this event, Martha Jones is temporarily reunited with the Doctor and meets Donna Noble for the first time. Donna also narrowly misses witnessing a brief transmission from Rose Tyler in the TARDIS. As part of the Sontaran invasion plan, all ATMOS-equipped vehicles begin emitting a toxic gas intended to transform the world's atmosphere into a more hospitible one for Sontaran offspring; numerous fatalties are reported worldwide before the Doctor disables the devices. Afterwards, the ATMOS devices are removed from the planet's vehicles. (DW: The Sontaran Stratagem/The Poison Sky; Date: NDA: Beautiful Chaos)

May

 * 15 - 18 - the Mandragora Helix attempts a takeover of Earth through the MorganTech computer systems (NDA: Beautiful Chaos).

October

 * The Doctor and Martha Jones visit Blackwood Falls. (TDA: Forever Autumn)
 * Harriet Jones is shot and killed by a Dalek whilst helping to get The Doctor to earth. (DW: The Stolen Earth)

Unknown

 * Shreela Govindia dies of an autoimmune disease. (NA: Cat's Cradle: Warhead)
 * ATMOS, a combination GPS/emission control system for automobiles, becomes widespread in vehicles around the world.
 * Rose Tyler temporarily returns from her parallel Earth, initially arriving in the normal universe (DW: Partners in Crime) but later ending up in an alternate timeline where she attains a position of authority with UNIT and works with them and Donna Noble to restore the timeline. (DW: Turn Left)
 * The Earth is relocated to the Medusa Cascade by the Daleks under the control of the Supreme Dalek and Davros. Despite the relocation, the planet retains a full communications network. An invasion of Earth by the Daleks commences and a number of humans are taken to "the Crucible", the Dalek mothership, where they are killed in tests of the reality bomb. As part of a counter-insurgency against the Dalek invasion, former Prime Minister Harriet Jones brings together a number of the Doctor's former companions, including Captain Jack Harkness, Sarah Jane Smith, and Martha Jones in order to contact the Doctor, and before she herself is killed by the Daleks. Rose Tyler, meanwhile, joins Donna Noble's family and is ultimately reunited with the Doctor. During this incident, The Doctor undergoes a partial regeneration in order to repair damage from a Dalek blast; as a result of this, the Doctor's severed hand later forms a mental link with Donna and grows into a second version of the Doctor, but one that's half-human without Time Lord biological abilities. The Doctor and his companions are successful in restoring Earth to its original location; this sparks worldwide celebrations around the planet. Afterwards, Mickey Smith chooses to remain on his original Earth instead of returning to Pete's World, Harkness offers Martha Jones a job with Torchwood 3, and the Doctor returns Rose and Jackie Tyler to Pete's World, along with his clone. Donna Noble is returned to her family with all memories of the Doctor wiped from her mind. (DW: The Stolen Earth/Journey's End)

Alternate timelines

 * 'The Year That Never Was: The Master rules the Earth with an iron fist, before Captain Jack destroys the Paradox machine, which reverses time back to 2008. (DW: Last of the Time Lords).
 * 'Donna's World - After the Titanic fell to Earth on 25th December 2008, annihilating London and rendering most of southern England unlivable with nuclear radiation, Great Britain has become a police state. Londoners lucky enough to have survived are subject to forced relocations; Donna Noble's family is moved to Leeds. Rose Tyler works with the UNIT of this timeline to help Donna Noble restore the proper chain of events which, at one point, involves sending Donna back to 2007. (DW: Turn Left)

January

 * 01 - BBC TV broadcasts an edited version of the July 2008 Doctor Who at the Proms concert, previously released on radio and the Internet. The broadcast includes the television debut of the audience-interactive mini-episode Music of the Spheres.
 * 02 - Who fandom is caught by surprise when the BBC announces that the actor to play the Eleventh Doctor is to be announced in a special edition of Doctor Who Confidential the next day,
 * 03- During a special edition of Doctor Who Confidential, the BBC announces that Matt Smith has been cast as the Eleventh Doctor.
 * Early/Mid January - Production is scheduled to begin on four one-hour Doctor Who specials to air during 2009 and early 2010 in lieu of a full season. These specials will mark the end of David Tennant's era as the Tenth Doctor, and also conclude Russell T. Davies and Julie Gardner's tenures as producers.

February

 * 12 - Scheduled release of The Nemonite Invasion, an original made-for-BBC Audio story read by Catherine Tate.
 * 26 - Scheduled publication of The Sontaran Games, the fourth Quick Reads novella.

Spring

 * Series 3 of Torchwood is expected to air in spring 2009 according to Doctor Who Magazine #400. The season will consist of a single five-episode story arc entitled Children of Earth.

April

 * 16 - Scheduled publication of Judgement of the Judoon, Prisoner of the Daleks and The Slitheen Excursion. All three novels feature the Tenth Doctor without a companion, continuing the format established by The Eyeless. Notably, all three releases in this cycle (as well as the preceding Quick Reads release) feature returning monsters.
 * Easter: Scheduled broadcast of Planet of the Dead, the first of four one-hour special episodes of Doctor Who scheduled for broadcast during 2009 and early 2010 in lieu of a regular season in 2009. (Exact date TBA) Co-written by Russell T. Davies and Gareth Roberts, it is the first episode on which Davies shares writing credit, is the first episode of the revived series to credit two writers, and is the first story to credit two writers since 1993's Dimensions in Time.
 * 29 - Publication of Doctor Who: The Forgotten, a graphic novel-style release reprinting the The Forgotten story arc from IDW Publishing's Doctor Who comic book series.

May

 * 29 - Scheduled publication of Doctor Who Classics Vol. 3, a graphic novel-style release reprinting issues of Doctor Who Classics by IDW Publishing.

December

 * 06 - 20th anniversary of the broadcast of Survival Episode 3, the final episode of the original 1963-1989 series.

Unannounced dates

 * Production of the 2010 series is expected to begin, with Steven Moffat as new head writer and Piers Wenger as new producer and Matt Smith in the role of the Eleventh Doctor.
 * Three one-hour Doctor Who special episodes will be broadcast, titles and date TBA, with the last special possibly to air in early 2010. This last special (title TBA), which is expected to be the final special episode of the "gap year" as Doctor Who is scheduled to return for a full season in 2010. Russell T. Davies (who will write or co-write the specials) is scheduled to hand over showrunner duties to Steven Moffat and Julie Gardner is also expected to end her tenure as executive producer following this episode. This will also be the final episode of David Tennant's tenure as The Doctor, though it has yet to be confirmed whether a regeneration will occur on screen, introducing Matt Smith who will become the Eleventh Doctor.
 * A third season of The Sarah Jane Adventures is scheduled for broadcast in the fall of 2009.