Final days of the Time War

The Tenth Doctor recalled the "final days" of the Time War between the Time Lords and the Daleks, (TV: The End of Time) although those alive in the conflict were faced with the fact that recognisable days no longer existed. (AUDIO: Day of the Master)

The Time Lords of Gallifrey foresaw that their own destruction would come in the "last day of the Time War", also known as the Final Day. (TV: The End of Time) The Eleventh Doctor would later admit to himself that millions of days along his timeline were the last day of the Time War. (PROSE: The Day of the Doctor)

Behind the scenes

 * The publisher's summary for the novelisation of The Day of the Doctor establishes the Time War's "dark days" to be its final days, describing the War Doctor fighting Daleks during the time.