Key to Time (disambiguation)

Key to Time may refer to:


 * The Key to Time - a powerful artefact.
 * The Key to Time story arc, or season 16.
 * The Key to Time (box set) - the DVD release of season 16.
 * The Key 2 Time: The Judgement of Isskar, The Destroyer of Delights and The Chaos Pool - an audio trilogy featuring the Fifth Doctor.
 * The Key to Time: A Year by Year Record - a reference book published by W. H. Allen and Virgin Publishing.