Raws li cov ntaub ntawv muaj, lub sijhawm yog tsib xyoos.
Tsuas yog cov khoom lag luam uas tau txais daim ntawv pov thawj pov thawj kev nyab xeeb thee thiab daim ntawv tshaj tawm kev xeem thib peb thiaj li tsim nyog tau txais kev ruaj ntseg thee (MA) cim. Ob qho tib si thee kev nyab xeeb (MA) cim thiab daim ntawv tshaj tawm kev xeem thib peb yog siv tau rau lub sijhawm tsib xyoos. Thaum lub sijhawm no dhau mus, Nws yog ib qho tsim nyog yuav tsum tau ua raws li cov txheej txheem ntawv pov thawj tshiab.