1965

March

 * The Doctor's TARDIS materialises in Wimbledon Common, London, so that Steven Taylor can go on with his own life. He comes across Dodo Chaplet, who says she has had an accident. (DW: The Massacre of St Bartholomew's Eve) The Doctor, Dodo and Steven travel to Manhattan, New York City where they meet the alien Latter-Day Pantheon. (PDA: Salvation)

April
Further events in New York City concerning the Latter-Day Pantheon and TARDIS crew. (PDA: Salvation)

Summer

 * Ian Chesterton and Barbara Wright arrive back in London aboard the DARDIS, which self-destructs soon after. Boarding a bus, they contemplate how they will pick up their previous, "normal" lives again, having arrived at a point two years after joining the Doctor on his travels. (DW: The Chase)

December

 * 25 - The Doctor's TARDIS materialises in the yard of a police station in Liverpool, its scanner malfunctioning. After some initial fears that the polluted atmosphere of the 20th century might harm his companions Steven Taylor and Sara Kingdom, who grew up in the purified atmospheres of the future, and some trouble with the local police, the Doctor repairs the malfunctioning scanner and the TARDIS departs. (DW: The Daleks' Master Plan)
 * 31 - After leaving the Monk on Tigus, the TARDIS materializes in Trafalgar Square duing the New Year's Eve celebrations. (DW: The Daleks' Master Plan)

Unknown
The British government is contacted by an alien race dubbed The 456, who demand one dozen children in exchange for an anti-virus for an influenza outbreak that will otherwise kill millions. Jack Harkness of the Torchwood Institute is ordered to deliver a busload of children from an orphanage in Scotland. One child, Clement MacDonald, somehow escapes and ends up on the run, destined to spend the next 45 years in asylums. The children delivered, the anti-virus is provided, and the flu outbreak is quelled. (TW: Children of Earth)

January

 * 02 - "The Powerful Enemy" (DW: The Rescue Episode 1) is first broadcast. First appearance of Maureen O'Brien as Vicki.
 * 09 - "Desperate Measures" (DW: The Rescue Episode 2) is first broadcast. With this episode, Vicki accepts the Doctor's offer to travel in the TARDIS and establishes the tradition of the series periodically introducing new companions.
 * 16 - "The Slave Traders" (DW: The Romans Episode 1) is first broadcast.
 * 23 - "All Roads Lead to Rome" (DW: The Romans Episode 2) is first broadcast.
 * Debut of The Daleks comic strip in TV Century 21.
 * 30 - "Conspiracy" (DW: The Romans Episode 3) is first broadcast.

February

 * 06 - "Inferno" (DW: The Romans Episode 4) is first broadcast.
 * 13 - The third Radio Times Doctor Who cover features the upcoming DW: The Web Planet with a photo of the Zarbi and the Vortis landscape.
 * "The Web Planet" (DW: The Web Planet Episode 1) is first broadcast. Though it only got 53% in Audience Appreciation figures, this episode brought 13.5 million viewers, which as of Fall 2009 remains the highest single viewership of any Doctor Who episode ever.
 * 20 - "The Zarbi", (DW: The Web Planet Episode 2) is first broadcast.
 * 27 - "Escape to Danger" (DW: The Web Planet Episode 3) is first broadcast.

March

 * 06 - "Crater of Needles", (DW: The Web Planet Episode 4) is first broadcast.
 * 13 - "Invasion" (DW: The Web Planet Episode 5) is first broadcast.
 * 20 - "The Centre" (DW: The Web Planet Episode 6) is first broadcast.
 * 27 - "The Lion" (DW: The Crusade Episode 1) is first broadcast.

April

 * 03 - "The Knight of Jaffa" (DW: The Crusade Episode 2) is first broadcast.
 * 10 - "The Wheel of Fortune" (DW: The Crusade Episode 3) is first broadcast.
 * 17 - "The Warlords" (DW: The Crusade Episode 4) is first broadcast.
 * 24 - "The Space Museum" (DW: The Space Museum Episode 1) is first broadcast.

May

 * 01 - "The Dimensions of Time" (DW: The Space Museum Episode 2) is first broadcast.
 * 08 - "The Search" (DW: The Space Museum Episode 3) is first broadcast.
 * 15 - "The Final Phase" (DW: The Space Museum Episode 4) is first broadcast.
 * 22 - "The Executioners" (DW: The Chase Episode 1) is first broadcast.
 * 29 - "The Death of Time" (DW: The Chase Episode 2) is first broadcast.
 * 29 - Dursley McLinden is born.

June

 * 05 - "Flight Through Eternity" (DW: The Chase Episode 3) is first broadcast. Peter Purves appears on the series for the first time, but not as Steven Taylor.
 * 12 - "Journey Into Terror" (DW: The Chase Episode 4) is first broadcast.
 * 17 - Publication of The Dalek Painting Book by Souvenir Press. A massive 350,000 copies are printed.
 * 19 - "The Death of Doctor Who" (DW: The Chase Episode 5) is first broadcast. First use of the name "Doctor Who" in an episode title.
 * 25 - Dr. Who and the Daleks, a colour feature film loosely based upon DW: The Daleks, is released, featuring the debut of Peter Cushing as Dr. Who.
 * 26 - "The Planet of Decision" (DW: The Chase Episode 6) is first broadcast. Despite having appeared as a different character in the same serial only a few weeks earlier, Peter Purves joins the series playing Steven Taylor. Meanwhile, both William Russell and Jacqueline Hill leave the series with this episode, leaving William Hartnell the sole original cast member from 1963.

July

 * 03 - "The Watcher" (DW: The Time Meddler Episode 1) is first broadcast.
 * 10 - "The Meddling Monk" (DW: The Time Meddler Episode 2) is first broadcast.
 * 17 - "The Battle of Wits" (DW: The Time Meddler Episode 3) is first broadcast.
 * 24 - "Checkmate" (DW: The Time Meddler Episode 4), the final episode of Season 2, is first broadcast. This is followed by the show's first substantial season break as it takes the rest of the summer off.

August

 * Publication of Paint and Draw the Film of Dr. Who and the Daleks by Souvenir Press. Again, some 350,000 copies are printed.

September

 * 11 - Season 3 commences with the first broadcast of "Four Hundred Dawns" (DW: Galaxy 4 Episode 1).
 * 13 - Eric Potts is born.
 * 16 - DWN: Doctor Who and the Zarbi by Bill Strutton, the second novelisation of a Doctor Who serial (DW: The Web Planet), is first published by Frederick Muller.
 * 18 - "Trap of Steel" (DW: Galaxy 4 Episode 2) is first broadcast.
 * 25 - "Air Lock" (DW: Galaxy 4 Episode 3) is first broadcast.
 * The first Doctor Who Annual, Doctor Who Annual 1966, is published by World Distributors, Ltd.

October

 * 02 - "The Exploding Planet" (DW: Galaxy 4 Episode 4) is first broadcast.
 * 07 - The Dalek Pocketbook and Space Travellers Guide first published.
 * 09 - DW: Mission to the Unknown is first broadcast. This is the only "serial" in which the Doctor or his companions do not appear and is the only single-episode serial produced in the 25-minute format. It is the last episode produced by original producer Verity Lambert.
 * 11 - The Dalek World first published.
 * 16 - "Temple of Secrets" (DW: The Myth Makers, Episode 1) is first broadcast. This is the first episode produced by John Wiles.
 * 23 - "Small Profit, Quick Return" (DW: The Myth Makers Episode 2) is first broadcast.
 * 30 - "Death of a Spy", (DW: The Myth Makers Episode 3 is first broadcast.

November

 * 06 - "Horse of Destruction" (DW: The Myth Makers Episode 4) is first broadcast. Maureen O'Brien leaves the series with this episode, which introduces Adrienne Hill as short-lived companion Katarina.
 * 13 - "The Nightmare Begins" (DW: The Daleks' Master Plan Episode 1) is first broadcast. Nicholas Courtney makes his first appearance on Doctor Who as Bret Vyon.
 * 16 - Mark Benton is born.
 * 20 - "Day of Armageddon" (DW: The Daleks' Master Plan Episode 2) is first broadcast.
 * 27 - "Devil's Planet" (DW: The Daleks' Master Plan Episode 3) is first broadcast.

December

 * 04 - "The Traitors" (DW: The Daleks' Master Plan Episode 4) is first broadcast. Adrienne Hill makes her final appearance as Katarina as her character becomes the first companion to be killed off. Jean Marsh, who previously appeared in DW: The Crusade, makes her debut as single-story companion Sara Kingdom.
 * 11 - "Counter Plot" (DW: The Daleks' Master Plan Episode 5) is first broadcast.
 * 18 - "Coronas of the Sun" (DW: The Daleks' Master Plan Episode 6) is first broadcast.
 * 21 - Premiere of the stage play SP: The Curse of the Daleks at Wyndham's Theatre in London. The play runs into 1966.
 * 25 - "The Feast of Steven" (DW: The Daleks' Master Plan Episode 7) is first broadcast. This is the first Christmas-themed episode of Doctor Who and is a standalone story not directly connected to the ongoing story arc. It concludes with an infamous moment where William Hartnell, in character as the Doctor, breaks the fourth wall to wish viewers a Merry Christmas. The next Christmas-themed Doctor Who episode would not air until DW: The Unquiet Dead in 2005, while a tradition of Christmas Day special episodes would begin with DW: The Christmas Invasion later in 2005.

Unknown dates

 * Armada Books publishes the first paperback edition of the first Doctor Who novelisation, DWN: Dr. Who in an Exciting Adventure with the Daleks.
 * DWN: Doctor Who and the Crusaders published, adapting DW: The Crusade. This is the third and last of a trilogy of novelisations published by Frederick Muller. The next new novelisation would not be published until DWN: Doctor Who and the Auton Invasion established the Target Novelisation line in early 1974.
 * Publication of The Dalek Outer Space Book by David Whitaker and Terry Nation.
 * Publication of The Dalek Pocketbook and Space Travellers Guide by Terry Nation.