Department of Chronology's clock tower
From Jenny Everywhere Wiki
By December 2019, the Department of Chronology of the Crew of the Copper-Colored Cupids maintained a clock tower whose bells' hourly chimes could be heard from within Philatel-426's house. Because the Department had never successfully “worked out a fixed system of time for the Homeworld”, the clock tower was attuned to one of the time zones of the Prime Universe's Earth, roughly matching the alternating designated working and resting periods put forward by the Department of Sleep. (PROSE: A Copper-Colored Christmas Carol)
Behind the scenes
Whether this clock tower is the same as the Continuity Tower which serves as the same Department of Chronology's headquarters has not been clarified.