The time circuits of the DeLorean time machine were an integral part to its functionality. They were coupled with an input device and a display. The display was divided into three sections: DESTINATION TIME, PRESENT TIME, and LAST TIME DEPARTED, all annotated with Dymo labels. When Marty comes across a temporal duplicate of the Delorean on May 14, 1986, the Last Time Departed was blank until the car was shot in 1931. Interestingly, on board the Jules Verne Train, Doc still built a display that only contained four digits for the year, thus creating the 10,000 year problem again.