Ku qor sii wadida faqradan - Sayidyada Waqtiga aad ayey u cimri dheer yihiin, iyagoo si caadi ah u tirinaya da'dooda iyadoo loo eegayo qarniyo; Dhakhtarka Labaad wuxuu ku andacoonayaa "Ciyaaraha Dagaalka" in Sayidyada Waqtiga ay ku noolaan karaan "dhab ahaantii weligeed, marka laga reebo shilalka". Taxanaha ayaa soo jeediyay in Sayidyada Waqtiga ay leeyihiin fikrad ka duwan da'da dadka. In "Pyramids of Mars", Dhakhtarka Afaraad wuxuu u arkaa da'da 750 sano inay tahay "da'da dhexe". In "The Earth Xaday", Doctor-ka tobnaad wuxuu tilmaamayaa markii uu asalka ahaa uu ahaa "caruur" 90 jir ah. Si kastaba ha noqotee, gudaha jidh ahaan, Sayidka Waqtiga ayaa awood u leh da'da, inkasta oo ay aad uga gaabis tahay tan aadanaha. Dhakhtarka Dagaalka iyo Dhakhtarka kow iyo tobnaad, inta lagu guda jiro Dagaalkii Weyn ee Waqtiga
iyo Dagaalkii Trenzalore, siday u kala horreeyaan, waxaa loo arkaa inay da'doodu ku dhex jirto jiritaankooda si ay u muuqato waxa bini-aadamka u muuqda da 'weyn; labada khilaafba waxaa lagu soo jeediyay taxanaha inay socdaan boqolaal haddii aysan kumanaan sannadood oo dhul ah.