Minecraft wiki entry for Hourly_clock, associated text: If you want your clock to sound in all your bases, but don't want to build different clocks all over the map, it is possible to connect all your bases to the clock. This will mean more delay from repeaters needed to carry power the distance from clock to base, but you can just say that there are minute time zone differences across the map (or make every base have an equal delay). Then just build more chimes in your bases. The inverters can also be connected to different parts of your central clock to offset the delay caused by the repeaters.