Time stream The time stream was the pathway for the movement of time , usually in relation to individual peoples or planet s . The Eleventh Doctor once used " time stream " and " timeline " as synonyms . ( TV : " The Name of the Doctor " ) Characteristics . The term " time stream " was used interchangeably with other terminology such as timeline , ( AUDIO : " Reborn " ) time track , ( AUDIO : " Disassembled " ) parallel universe , and reality . ( AUDIO : " Forever " ) Time streams formed possible futures , as the sigil ring allowed Ruath to change time streams and visit the future Earth ruled by Haemovore s . ( PROSE : " Goth Opera " ) The Grey Man plucked the Doctor ' s TARDIS from the time streams , meaning that the Time Vortex was composed of time streams in addition to time wind s . ( PROSE : " Falls the Shadow " ) Nyssa explained that the Fifth Doctor travelled the time streams , in addition to moving from planet to planet . ( AUDIO : " Hexagora " ) When concerned about changing history and erasing themselves , the Monk informed Vicki Pallister and Steven Taylor that they were safe as long as they stayed away from their native time streams , meaning they existed as temporal anomalies . ( AUDIO : " The Secret History " ) Individuals . Professor Chronotis ' TARDIS could interfere with an individual ' s time stream . ( HOMEVID : " Shada " , WC : " Shada " , AUDIO : " Shada " ) When the Timewyrm appeared in Great Britain in 1981 , it stated the timestream was in flux before becoming trapped in puterspace by the Seventh Doctor . ( COMIC : " The Last Word " ) The Doctor . The Second Doctor wouldn ' t risk re - entering the time stream with the time rotor dismantled . ( PROSE : " The Nameless City " ) At one point when the Third Doctor was attempting to repair his TARDIS , he saw a brief appearance of different versions of himself and Jo Grant , and when they disappeared he told Jo they had gone " back into their own time stream " . ( TV : " Day of the Daleks " ) The Seventh Doctor , when considering whether to let Kadiatu Lethbridge - Stewart discover time travel in the 22nd century or not , thought his interference could do things to the timestream that " even a Dalek would think twice about " . ( PROSE : " Transit " ) While awaiting his death at Lake Silencio , the Eleventh Doctor had the " Teselecta " send letters to Amy Pond and Rory Williams , River Song , Canton Everett Delaware III , and a younger version of himself . He explained that to deliver the messages himself , it would involve crossing his own time stream , " best not " , he remarked . ( TV : " The Wedding of River Song " ) The Doctor ' s time stream appeared as an open wound in the fabric of reality inside the ruins of the Doctor ' s TARDIS in the future on Trenzalore , where the Doctor was buried . The Great Intelligence , in the form of Walter Simeon , arrived on Trenzalore , accompanied by faceless humanoid s called the Whisper Men , whom he used to bring several of the Eleventh Doctor ' s friends there to draw him out so he could invade his time stream , turning all of his victories into defeats and having his ultimate revenge . He did so by directly entering his time stream inside the ruined future TARDIS . However , this plan was foiled by Clara Oswald , who followed the Great Intelligence through the wound . Just as he was , she was ripped into countless versions of herself throughout history and saved various incarnations of the Doctor countless times . The original Clara then found herself in a wasteland inhabited by the various Doctors . However the Eleventh Doctor entered the time stream and was able to extract her , though she saw an unknown incarnation . ( TV : " The Name of the Doctor " ) Species . Time Lords . The Second Doctor stated that the Time Lord s were responsible for placing and maintaining the time streams , and without them , countless millions of planets would die . ( PROSE : " The Nameless City " ) The Time Lord s revisited their own time stream to rewrite their laws in an attempt to trap the Valeyard . ( AUDIO : " Trial of the Valeyard " ) When in the Soviet Union in November 1967 , a Time Lord informed the Seventh Doctor that they had eased his arrival into the time stream . ( AUDIO : " Thin Ice " ) Others . The inhabitants of an unnamed planet were in a different time stream from the rest of the universe . When the First Doctor and Ian Chesterton visited the planet , a few minutes passed for them , but the inhabitants lived through their entire civilisation from its rise to its fall . ( AUDIO : " Rise and Fall " ) The Guardians of Time were able to " insert " themselves into the time stream , where upon they either took over or created the personas of powerful individuals in history . ( AUDIO : " The Destroyer of Delights " ) The Resurrectionist s were able to reverse time for the recently deceased , returning them to an earlier point in their time stream and psychically directing them away from the actions that lead to their death . ( AUDIO : " You Are the Doctor " ) Time Roach es consumed time streams , either ageing or de - ageing individuals . ( AUDIO : " Foreshadowing " ) The Graxnix were removed from the time stream by the Tenth Doctor , trapping them between seconds . ( COMIC : " Hotel Historia " ) The Two Streams Facility of Apalapucia used time streams ( which was the source of the name ) . Apalapucian s with the Chen - 7 plague were kept in the facility in different time streams , allowing them to live out their whole lives in 1 day . This also meant that each patient was kept isolated in a different time stream , but in the same place . ( TV : " The Girl Who Waited " ) Planets . The Third Doctor ' s encounter with the Silurian s was a crucial nexus point in Earth ' s time stream . ( COMIC : " Final Genesis " )